Cordless dremel battery

Cordless dremel battery DEFAULT

 

According to Dremel there are more than 17 million rotary tools in use today, of which many carry their name plate. The new 8200 Dremel is the latest of the cordless rotary tools variety and is similar in look and feel to the new corded Dremel 4000. Often the first question many people land on will be; how is this any different from the older ones?

Power

When comparing tools, electronics, cars or anything it’s always good to have some baseline stats, even if you don’t always know what they measure. Unfortunately when trying to compare rotary tools it feels like we are missing some vital stats. Really the only number crunching there is to do is on RPM and whether there are set speeds or variable from 5,000 up to 35,000 RPM. On the 8200 the range only goes to 30,000 RPM, while the previous cordless model went all the way to 35,000 RPM. Does that mean the older version had more power? Absolutely not the case here but there is no stat for power/torque. The best we can say is the 8200 is clearly more powerful with significantly less slowdown or drag while working. This can be a very important factor more in cutting and grinding applications.


Batteries

The new Dremel 12 Volt Max battery borrows heavily from their cousins at Bosch with their version of a 12 Volt Max battery. Unfortunately this does not mean the batteries work interchangeable with the Bosch (like how the Rotozip Cordless can use the Bosch 18V batteries). We did find that the chargers for Bosch and Dremel will charge each other’s batteries, nice for limiting the number of chargers you keep out in your shop.

 

The previous cordless Dremel uses a 10.8V lithium battery which is essentially the same as a 12V Max so don’t mistake the increase in power for a higher voltage in the newer Dremel 8200. While both tools use the same number of lithium cells these batteries are not compatible either. The old system took 3 hours to charge while the new 12V batteries are full in just 60 minutes. More good news is the new Dremel 12V Max Batteries will also work with the new Cordless Multi-Max (see info on Tool-guyd.com) which should be coming soon.

Run Time

The 12V market for tools no longer faces the question of can it power tools for professionals and serious tool users, clearly 12V is here to stay. These little power plants are idea for their compact size however in applications of high torque or continuous run-time battery life can become a question. Many applications for the 8200 cordless Dremel will involve long periods of continuous work so we though it was important just to see how they will hold up. We did two time trials to gauge the battery life: first we tried several cutting attachments where the Dremel would be running a minute or then have a few second break and back to work. The battery lasted about 35 minutes with breaks to change cutting materials or attachments. It was incredibly annoying only having the single battery, if you have the option get the kit with 2 batteries! So after an hour of watching the charger we did the second test. This time it was a continuous run of the battery with the sanding wheel between 15k-25k RPM. The Battery died after 23 minutes which was actually a pretty decent amount of time for this application. In both tests we were very impressed with the low amount of heat generated, definitely warm but still comfortable in the hands.

Accessories

As with many tools today the accessories that come with the kit are basically just enough to get started and realize you don’t have enough accessories. You get 1 metal disc, 1 grinding cone, etc but it’s enough to give you an idea of what the tool is capable of doing. It looks like the kit with 2 batteries also includes the right angle attachment which seems like it could be useful. There are so many attachments and accessories for these tools it would be impossible to make the right kits for everyone. Check out Dremel.com Accessories Page (here) for all the different options.

Overall

Even more pics in this Photo Album. The Dremel 8200 is definitely a big improvement over other cordless rotary tools we have seen. It is also more powerful than many other corded versions, even though nobody has any stats to prove it. If you are looking for a cordless rotary tool this is it. If you are not sure between corded rotary tool and this cordless 8200 that will depend greatly on what type of work you will be doing. Our recommendation if you decide to go with cordless would be to get the kit with 2 batteries!   

   

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Sours: https://beltsandboxes.com/dremel-8200-cordless-rotary-tool-12v-max-the-review/

Powerextra 7.2 Volt 2000mAh Battery Compatible with Dremel MultiPro Cordless Rotary Tool Models Dremel 7700-01 and Dremel 7700-02 Replacement Dremel 757-01 Dremel 7.2 volt Battery

产品描述

Battery for Dremel 7700-01 7700-02:

The replacement battery fully mataches OEM Dremel MultiPro Cordless Rotary Tools with excellent specification and compatibility.
The brand new replacement battery is rated 7.2 volts, 2000mAh high capacity for long battery runtime.
The battery for Dremel is made up of best quality Ni-CD battery cells for stable performance and efficiency.
It’s equipped with a protective microchip for preventing overcharge, over discharge, over heating and other issues.
You can charge or discharge the replacement battery efortlessly with no memory or battery capacity loss.

Replacement Battery for Dremel Cordless Rotary Tools:

Powerextra 2000mAh 7.2 volt replacement battery is for Dremel 7700-01 7700-02. It replaces the original Dremel Battery 757-01 with perfect compatibility. The replacement battery meets CE safety testing standards. It performs greatly with protection from overload and short-circuit problems. The long battery life makes the replacement battery great backup power to keep your Dremel cordless rotary tools going.

Compatible Dremel Models:
Dremel 7.2-Volt MultiPro cordless rotary tool models 7700-01 and 7700-02

Replacement Part Numbers:
Replace Dremel Battery 757-01

Dremel Battery Sepcification:
Battery Capacity: 2000mAh
Battery Voltage: 7.2V
Battery Type: Ni-CD
Color: Black
Condition: Brand New High Quality

Package:
1 * 2000mAh Powerextra 7.2 Volt Replacement Battery for Dremel 7700-01 7700-02

Sours: https://www.powerextra.com/product/7-2-volt-1000mah-battery-for-dremel-multipro-cordless-rotary-tool-models-dremel-7700-01/
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The Dremel 8050-N/18 Micro Rotary Tool Kit with 18 Accessories is the best cordless Dremel rotary tool. Click here to find out today’s discount.

person using a cordless dremel rotary tool to engrave a picture frame

The Dremel is the Mighty Mouse of the power tool world. What it lacks in size and strength, it makes up for in speed and maneuverability. Plus, many a time it has (at least in my do-it-yourself adventures) zoomed in to “save the day.”

mechanic using a cordless dremel tool to clean a car battery terminal

The rotary tool’s versatility has made it a favorite of model makers, mechanics, and DIYers for years.

Depending on the accessory you tighten into its chuck, it can polish, cut, drill, grind, engrave, clean, sand and carve.

It’s easy to control and can get into nooks and crannies that large grinders or sanding tools simply can’t.

Here’s the buzz.

What is a Dremel Tool?

Generically it’s called a “high-speed rotary tool,” but the DIYer on the street calls this a “Dremel.” Not many other tools fit the same pigeonhole. Big box stores offer models — manufactured by (surprise!) Dremel.

As far as I know, no other manufacturer offers a comparable tool. Specialty woodworking stores carry tools that operate permanently in a flexible shaft mode, but they’re pricey.

Dremel offers a variety of electric and battery-powered tools ranging from a cordless, two-speed model to an electric, variable speed model with all the bells and whistles.

You can buy a middle-of-the-road model with variable-speed, a case, and some bits and accessories to get you started; it’s most likely all the Dremel tool you’ll ever need.

How Do You PROPERLY Use a Dremel Tool?

The key to using a rotary tool successfully is to let the high speed of the tool do the work. Don’t force the tool or apply much pressure — let the 30,000 rpm do the work.

Make a series of light passes to complete the job. Since many of the bits and discs are small and thin, undue pressure can break or quickly dull them. Work with a light, steady hand.

Always wear protective eyewear; I’ve had fragile cut-off wheels break at 30,000 rpm and might have been injured without my safety goggles.

with proper safety goggles for ee protection and accessories such as a sanding drum, your cordless dremel becomes a great tool to remove paint from the most intricate spots

Remove paint and smooth surfaces using the Dremel tool and sanding drum. Dremel tools — versatile and precise — can be used with or without the stand and flexible shaft shown.

Also, take care not to block the air vents along the sides of the tool. These openings allow air to circulate around the motor to keep it cool.

Select the Right Accessory

A trip through the tool catalog reveals 130 different bits, stones, cutters and grinders made for Moto-Tools. And hundreds of additional accessories are offered by other manufacturers—just make sure they’re rated for speeds up to 30,000 rpm.

Dremel tools excel at:

Sharpening

Aluminum oxide grinding stones, in a variety of shapes and sizes, make for easy, precision sharpening of small tools (such as wire cutters and aviation snips) or tools with strangely shaped cutting blades (like curved pruning shears or spurred drill bits). Mount either the dull tool or the Dremel in a vise for stability (Photo 1). To avoid burning the edge, sharpen in four- to five-second spurts, then examine the tool edge while it cools.

with a grinding wheel accessory, you can sharpen any sort small or curved cutting blades such as scissors, metal cutting snips, curved pruning shears, etc

Sharpen small and oddly shaped tools with a grinding wheel accessory. Work in short spurts so you don’t over-heat the tool edge and weaken it.

Sanding

Their small size makes Dremel sanding accessories unsuitable for smoothing large surfaces, but ideal for nooks and crannies. Use a sanding drum, available in a variety of grits, and diameters, to smooth cutouts and curved surfaces. Use sanding discs for smoothing small surfaces, slots, and grooves.

this person is sanding all nooks and crannies with a sanding drum accessory in their cordless dremel

Engraving

Use a small-tipped engraving cutter (Photo 2) to mark your name or identification number on wood, metal, and plastic.

engraving metal such as writing your name in your power tools has never been easier than with this cordless rotary tool by dremel

Try the cutter on scrap metal before labeling any beloved tools or belongings; the tip tends to wander, but you can control it with practice. For the best control, hold the tip fairly square to the surface being marked.

use an engraving bit in your cordless dremel to also engrave on plastic and metal

Engrave your name or identification number on often-borrowed tools or belongings. There are different engraving tips for different materials, such as plastic and wood.

Grinding and Cutting Metal

This is where the Dremel tool excels.

Use grinding stones (Photo 4) to enlarge and shape holes in metal. Use cut-off wheels (Photo 3) to cut new slots in stripped screwheads, remove rivet and bolt heads, and square up a rounded bolt head so a wrench can fit.

For accuracy, hold the tool firmly with both hands while grinding or cutting.

if your bolt edges became rounded over, you can use a cut-off wheel on your rotary tool and create a slot for a screwdriver to loosen that old bolt

Cut slots in stubborn bolts, so a large screwdriver can remove them. Emery and heavy-duty fiberglass reinforced cut-off wheels can also cut through rusted nuts and screws.

cordless rotary tools are also great for locksmiths; all it takes is a grinding stone to enlarge a tight door strike plate

Enlarge a strike plate so the latch will fit. Grinding stones can also grind off rivet heads or remove burrs from rough-cut metal pipes and thresholds.

Drilling

The small profile of the Dremel tool allows it access to tight spaces where a normal drill can’t fit (Photo 5).

Before drilling metal, use a punch to create a starting dimple for the drill bit. When drilling, adjust variable speed tools to their slowest setting.

sometimes your project has a tight space where your drill won't fit; use your cordless dremel on its slowest speed setting

A Dremel tool lets you drill holes where a larger tool might not fit. Use the slowest speed setting on variable speed tools.

Cleaning and Polishing

Use a wire brush wheel for removing rust and paint, then a polishing wheel (Photo 6) to make metals shine.

a polishing wheel accessory is the perfect companion to buff and shine musical instruments with intricate shapes such as this trumpet

Buff and shine metal objects ranging from musical instruments to door hardware. Apply polishing com-pound to the wheel, then buff.

Variable speed models operate at a range of 5,000 to 30,000 rpm. Use low speeds when working on plastics or other materials that might melt when worked at higher speeds.

Rotary Tool Attachments

The most useful attachment on my Dremel tool is the “keyless chuck” (Photo 1), which allows bits to be secured without a wrench. The keyless chuck will accept all size shanks, plus release bits more easily than the standard chuck that requires a wrench.

You can also buy attachments that will turn your Dremel into a router, router table, drill press or chain saw sharpener.

Use the Dremel stand (Photo 1) to free up both hands for guiding tools and materials past the spinning bit.

The flexible shaft (opening photo), because it’s lighter and easier to manipulate than the tool itself, is perfect when you’re working for long periods or on delicate projects.

The Dremel 8050-N/18 Micro Rotary Tool Kit with 18 Accessories is the best cordless Dremel rotary tool. Click here to read owner’s reviews.

cordless dremel rotary tool with its charging base and 18 accessories

The Dremel 8050-N/18 Micro Rotary Tool Kit with 18 Accessories is the best cordless Dremel rotary tool. Click here to find out today’s discount.

person using a cordless dremel rotary tool to engrave a picture frame

The Dremel is the Mighty Mouse of the power tool world. What it lacks in size and strength, it makes up for in speed and maneuverability. Plus, many a time it has (at least in my do-it-yourself adventures) zoomed in to “save the day.”

mechanic using a cordless dremel tool to clean a car battery terminal

The rotary tool’s versatility has made it a favorite of model makers, mechanics, and DIYers for years.

Depending on the accessory you tighten into its chuck, it can polish, cut, drill, grind, engrave, clean, sand and carve.

It’s easy to control and can get into nooks and crannies that large grinders or sanding tools simply can’t.

Here’s the buzz.

What is a Dremel Tool?

Generically it’s called a “high-speed rotary tool,” but the DIYer on the street calls this a “Dremel.” Not many other tools fit the same pigeonhole. Big box stores offer models — manufactured by (surprise!) Dremel.

As far as I know, no other manufacturer offers a comparable tool. Specialty woodworking stores carry tools that operate permanently in a flexible shaft mode, but they’re pricey.

Dremel offers a variety of electric and battery-powered tools ranging from a cordless, two-speed model to an electric, variable speed model with all the bells and whistles.

You can buy a middle-of-the-road model with variable-speed, a case, and some bits and accessories to get you started; it’s most likely all the Dremel tool you’ll ever need.

How Do You PROPERLY Use a Dremel Tool?

The key to using a rotary tool successfully is to let the high speed of the tool do the work. Don’t force the tool or apply much pressure — let the 30,000 rpm do the work.

Make a series of light passes to complete the job. Since many of the bits and discs are small and thin, undue pressure can break or quickly dull them. Work with a light, steady hand.

Always wear protective eyewear; I’ve had fragile cut-off wheels break at 30,000 rpm and might have been injured without my safety goggles.

with proper safety goggles for ee protection and accessories such as a sanding drum, your cordless dremel becomes a great tool to remove paint from the most intricate spots

Remove paint and smooth surfaces using the Dremel tool and sanding drum. Dremel tools — versatile and precise — can be used with or without the stand and flexible shaft shown.

Also, take care not to block the air vents along the sides of the tool. These openings allow air to circulate around the motor to keep it cool.

Select the Right Accessory

A trip through the tool catalog reveals 130 different bits, stones, cutters and grinders made for Moto-Tools. And hundreds of additional accessories are offered by other manufacturers—just make sure they’re rated for speeds up to 30,000 rpm.

Dremel tools excel at:

Sharpening

Aluminum oxide grinding stones, in a variety of shapes and sizes, make for easy, precision sharpening of small tools (such as wire cutters and aviation snips) or tools with strangely shaped cutting blades (like curved pruning shears or spurred drill bits). Mount either the dull tool or the Dremel in a vise for stability (Photo 1). To avoid burning the edge, sharpen in four- to five-second spurts, then examine the tool edge while it cools.

with a grinding wheel accessory, you can sharpen any sort small or curved cutting blades such as scissors, metal cutting snips, curved pruning shears, etc

Sharpen small and oddly shaped tools with a grinding wheel accessory. Work in short spurts so you don’t over-heat the tool edge and weaken it.

Sanding

Their small size makes Dremel sanding accessories unsuitable for smoothing large surfaces, but ideal for nooks and crannies. Use a sanding drum, available in a variety of grits, and diameters, to smooth cutouts and curved surfaces. Use sanding discs for smoothing small surfaces, slots, and grooves.

this person is sanding all nooks and crannies with a sanding drum accessory in their cordless dremel

Engraving

Use a small-tipped engraving cutter (Photo 2) to mark your name or identification number on wood, metal, and plastic.

engraving metal such as writing your name in your power tools has never been easier than with this cordless rotary tool by dremel

Try the cutter on scrap metal before labeling any beloved tools or belongings; the tip tends to wander, but you can control it with practice. For the best control, hold the tip fairly square to the surface being marked.

use an engraving bit in your cordless dremel to also engrave on plastic and metal

Engrave your name or identification number on often-borrowed tools or belongings. There are different engraving tips for different materials, such as plastic and wood.

Grinding and Cutting Metal

This is where the Dremel tool excels.

Use grinding stones (Photo 4) to enlarge and shape holes in metal. Use cut-off wheels (Photo 3) to cut new slots in stripped screwheads, remove rivet and bolt heads, and square up a rounded bolt head so a wrench can fit.

For accuracy, hold the tool firmly with both hands while grinding or cutting.

if your bolt edges became rounded over, you can use a cut-off wheel on your rotary tool and create a slot for a screwdriver to loosen that old bolt

Cut slots in stubborn bolts, so a large screwdriver can remove them. Emery and heavy-duty fiberglass reinforced cut-off wheels can also cut through rusted nuts and screws.

cordless rotary tools are also great for locksmiths; all it takes is a grinding stone to enlarge a tight door strike plate

Enlarge a strike plate so the latch will fit. Grinding stones can also grind off rivet heads or remove burrs from rough-cut metal pipes and thresholds.

Drilling

The small profile of the Dremel tool allows it access to tight spaces where a normal drill can’t fit (Photo 5).

Before drilling metal, use a punch to create a starting dimple for the drill bit. When drilling, adjust variable speed tools to their slowest setting.

sometimes your project has a tight space where your drill won't fit; use your cordless dremel on its slowest speed setting

A Dremel tool lets you drill holes where a larger tool might not fit. Use the slowest speed setting on variable speed tools.

Cleaning and Polishing

Use a wire brush wheel for removing rust and paint, then a polishing wheel (Photo 6) to make metals shine.

a polishing wheel accessory is the perfect companion to buff and shine musical instruments with intricate shapes such as this trumpet

Buff and shine metal objects ranging from musical instruments to door hardware. Apply polishing com-pound to the wheel, then buff.

Variable speed models operate at a range of 5,000 to 30,000 rpm. Use low speeds when working on plastics or other materials that might melt when worked at higher speeds.

Rotary Tool Attachments

The most useful attachment on my Dremel tool is the “keyless chuck” (Photo 1), which allows bits to be secured without a wrench. The keyless chuck will accept all size shanks, plus release bits more easily than the standard chuck that requires a wrench.

You can also buy attachments that will turn your Dremel into a router, router table, drill press or chain saw sharpener.

Use the Dremel stand (Photo 1) to free up both hands for guiding tools and materials past the spinning bit.

The flexible shaft (opening photo), because it’s lighter and easier to manipulate than the tool itself, is perfect when you’re working for long periods or on delicate projects.

The Dremel 8050-N/18 Micro Rotary Tool Kit with 18 Accessories is the best cordless Dremel rotary tool. Click here to read owner’s reviews.

cordless dremel rotary tool with its charging base and 18 accessories
Sours: https://bestlife52.com/tool/cordless-dremel-rotary-tool/
Upgrading the battery on my dremel Micro

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Sure, there are plenty of plant markers available to buy, but it’s much more fun to make your own. Whether you have a greenhouse, urban garden, or hanging garden, these copper markers are a great way to keep your plants organized – plus they’re stylish, easy to make and last for years. These DIY plant markers are perfect to dress up a balcony garden and the copper brings a cool, industrial vibe. All you need is a copper pipe and some handy Dremel tools, so why not get started on this fun urban garden project?

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Even the tiniest of balconies can be the place to party with this cool and clever balcony bar. Its sturdy tabletop is roomy without taking up too much space and the brilliant built-in plant pots are an awesome addition to your small city garden. This step-by-step guide on how to build a balcony bar is easy to follow and great fun too. Who knew you could tackle impressive DIY tasks like welding and deburring? Let Dremel’s Master Maker, Marit Boers, lead the way and you’ll be entertaining your friends, working al fresco or having an impromptu balcony breakfast before you know it.

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Take a peek at Dremel’s simple DIY tutorial on how to upcycle a few wooden crates into a BBQ side table – perfect for any garden.

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If you want a happy, healthy dog, knowing how to trim your dog’s nails is vital. But giving your pet a pedicure can be intimidating at the best of times. Luckily, help is here. This beginner’s guide to well-trimmed pet’s nails covers all the basics, from how to use Dremel’s new PawControl, to paw handling and what angle to work at. You’ll learn how short you can go without hurting your pup, giving you some much-needed confidence while grinding. Go on, have a go and discover that perfecting your pet’s nails doesn’t have to be stressful.

Compare all Rotary tools

Product Comparison (12)

4300 High Performance Variable Speed Rotary Tool 4000 High Performance Variable Speed Rotary Tool 200 Two Speed Rotary Tool 3000 Variable Speed Rotary Tool 100 Single Speed Rotary Tool 9100 Fortiflex Heavy Duty Flex Shaft Tool 2050 Stylo+ Versatile Craft Tool 8220 12VMax High-Performance Cordless 7700 7.2V Rotary Tool 7760 Cordless Rotary Tool Dremel 7350-5 Cordless Rotary Tool Kit 7300 MiniMite Cordless
Speed Variable (5,000 to 35,000 RPM) Variable (5,000 to 35,000 RPM) Two Speed Variable (5,000 - 35,000 RPM) Single Speed 23,000 RPM Variable (5,000 to 22,000 RPM) Variable (5,000 - 35,000 RPM) Two Speeds (10,000 and 20,000 RPM) Variable Speed 8,000-25,000 RPM Single Speed Two Speed
Warranty Limited 2 Years Limited 2 Years Limited 2 Years Limited 2 Years Product Defects Only - 2 Years Limited 2 Years 2 Years Product Defects Only - 2 Years Limited 2 Years Product Defects Only - 2 Years Limited 2 Years Limited 2 Years
Certifications - - - - - - - - - UL - -
Material - - - - - - - Composite Get a cordless rotary tool that's ready for anything. From shaping and trimming to cutting materials, the DREMEL 7700 tackles jobs that other tools can't. - High Density Plastic -
Battery Voltage (V) - - - - - - - 12 7.2 3.6 4 4.8
Model Number - - - - - - - 8220 - 7760 7350
Sours: https://us.dremel.com/en_US/products/-/show-product/tools/8220-12vmax-high-performance-cordless

Battery cordless dremel

Dremel 7300 MiniMite Cordless Troubleshooting

Your Dremel won’t turn on, no matter what

The battery pack fits one way into the device, but it needs to lock in place in order to have good contact. Please refer to our replacement guide on the battery .

The Mini Mite Cordless requires 3 hours of charging time to reach its full capacity. In constant use, it only lasts about 10 minutes. Try to recharge the battery pack by leaving it on the charger for several hours, and try again. Please refer to our replacement guide on the battery.

The charger may have burned out from being left plugged in too long. It has a green light that glows when charging. If it does not glow when a battery pack is plugged in, it may have stopped working. New chargers can be bought separately from stores and Amazon.

In order to operate there has to be a good connection between the battery pack and the device. If there is dirt, dust or something blocking the connection, clean or remove the obstruction and try to turn the Dremel on again. Please see our replacement guide on the battery.

If the device still won’t work, the motor may be damaged. Please refer to our guide on how to replace the motor shaft assembly.

I put the pack on the charger, but it isn’t charging

If the battery pack hasn’t latched into the charger, which a small click sound, it may not be making a good connection with the charger. Remove the battery pack and try to insert it in the charger again. Please refer to our replacement guide on the battery .

The battery pack may need replacing, if it can no longer hold a charge.

You tried to unscrew the collet nut and remove the bit, but it is still stuck

Sometimes if you leave a bit in the device for a long time, it will be a little harder to get out. You may need other tools to break the bit free. Please refer to our guide on replacing the collet.

The collet is the collar around the tip of the device that holds a bit to the Dremel, and the collet nut is the sleeve that contains and grips the bit and the collet.

The threads of the collet nut get worn out from general use. Also the collet inside the assembly may become damaged from corrosion or use. This prevents the tip from opening to accept bits. Please refer to our guide on replacing the collet.

You've tried, but you still can't turn the device on, or change the bit.

The switch may have been damaged from being dropped or just from general use. This will require you to replace the motor shaft assembly because it all comes in one piece.

If the shaft lock button (the button right below the bit) is no longer locking, so that you can loosen the collet nut to switch bits, it may be that the spring for the shaft lock button has become dislodged.

If the button no longer returns after you press the button. It is most likely the spring has been dislodged or damaged. This occurs most often when the device is dropped. Please refer to our replacement guide on the shaft lock assembly.

The device is making a weird noise when it is turned on, running at unusual speeds or does not turn at all.

If the device is running at unexpected speeds, or turning on but not spinning, it may be that the carbon brushes in the electric motor are worn out and you may need to replace the motor shaft assembly.

If you are creating a lot of dust when using the device, some of that dust will eventually build up inside of it. This will lead to a decline in performance and eventually ruin the electric motor. Please refer to our guide to replace the motor shaft assemblyor to replace the collet.

Sours: https://www.ifixit.com/Wiki/Dremel_7300_MiniMite__Cordless_Troubleshooting
BEST Variable Speed Cordless Rotary Tool Dremel 8220 Series 12-V Lithium-Ion Variable Speed REVIEW

Introduction: Cordless Dremel Battery Pack Upgrade

The cordless Dremel Multipro rotary tool uses a rechargeable battery so you work anywhere without having an AC power source. Unfortunately, like most power tools, the battery pack is filled with cheap nickel cadmium cells that don't last very long on a charge and will start to wear out after a couple years. Since the pack uses standard AA size cells, you can replace them with high-capacity nickel metal hydride cells for a battery that lasts 3 times longer.

Step 1: Opening the Pack

The battery pack is held closed by four small plastic tabs on the back. Push them out of the way with a small screwdriver and the blue part will come off.

Now remove the two groups of NiCD cells. They are 700mAh AA's, with little tabs holding them together. Each group is 3.6V, so the tool connect them in either series or parallel to select high or low speed.

Step 2: NiMH Cells

You'll need a total of 6 nickel metal hydride AA cells, with solder tabs attached. You can buy these from a number of online stores for a little under $2 each. Just make sure you get the ones with tabs so you can solder them together.

Total price for all 6 cells from various stores:
http://www.batteryjunction.com/onepcsaa20ni.html 2300mAh, $10.80
http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=222 2200mAh, $9.96
http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1336 2300mAh, $10.92

Step 3: Solder Into Packs

Separate your new batteries into two groups. Arrange them the same way as the old pack, in series. To make sure you have the polarity right, you can check the groove on the end of each NiCD cell that indicates the positive end, look at the +/- markings on the outside of the pack enclosure, or check the old pack with a voltmeter.

If your cells have short tabs like mine, you'll need to splice them together with a small piece of wire.

Once you have them connected in the right order, solder the tabs together and check the total voltage to make sure everything conducts.

After they're soldered, wrap some tape around each pack to hold them together and cut off the bottom tabs.

Step 4: Assemble and Test the Pack

Place the new cells into the plastic pack enclosure. Before you close everything up, plug the pack into the Dremel and test it on both speeds. It won't stay in very well by itself, so you'll have to hold it in to keep electrical contact.

Once you're sure everything works, snap the blue plastic part back in to close the battery pack. You should be able to charge it with the original charger, although it will take much longer because of the higher capacity cells.

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Sours: https://www.instructables.com/Cordless-Dremel-battery-pack-upgrade/

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Dremel has been the leader in the rotary tool market for some time, and the introduction of the new 8200 Lithium-ion Cordless Rotary Tool kit means that they now have an even wider appeal. While their existing lineup, including the popular Dremel 4000-2/30 High Performance Kit, is very capable, the 8200 allows a portability not found in previous incarnations from the company. Partially, this is because their other cordless tools, particularly the 7.2V MultiPro and 4.8V MiniMite, all fell short when it came to power and longevity. Even the 10.8V, while technically very similar to the 8200 in power and capacity, carried the same 3-hour charge time for its Lithium-ion batteries. Now, Dremel has borrowed from parent company Bosch, integrating their 12V Max technology, and bringing its latest cordless rotary tool’s recharge time down to a manageable one-hour.


Make no mistake, this is a big deal and truly revamps the potential and practicality of Dremel’s cordless rotary tool line. To get a nice overview of the available cordless Dremel products, let’s lay them out in a grid to compare:

820010.8VStylus7.2V MultiPro4.8V MiniMite
Voltage12V (max)10.8V
(12V max)
7.2V7.2V4.8V
RPM5-30k RPM5-35k RPM5-25k RPM10k/20k RPM6.5k/13k RPM
Weight1 lb. 6 oz.14 oz.9 oz.11 oz.9 oz.
Charge Time
1 hour3 hours3 hours3 hours3 hours

While the 8200 is certainly heavier than the other cordless rotary tools, it’s really just more robust. It feels sturdy, similar to what we experienced in our Dremel MultiMax review, which we praised  last year.

Dremel 8200 Cordless Rotary Tool Build Quality

Continuing in our discussion of build quality, it was apparent when we picked up the Dremel 8200 that it was built to be used a lot more than prior cordless rotary tools I’d experienced. The tool is the new gray and black coloring that exists on their MultiMax tool, and emphasizes a more “serious” styling than the previous blue-accented black models. There is a lot of black rubber overmold underneath the tool where your fingers wrap around the tool during two-handed use. And Dremel really did well to make this tool easy to use with both hands for a steady cut or for when you are performing more intricate work like detail sanding or grinding. And by “easy to use” I mean that you really can have a rock-solid grip on this tool. That’s mostly due to the excellent shaping of the tool from its midriff on back. I’ll describe it form a right-handed perspective, but just realize that it’s completely ambidextrous. There is a slight groove cut into it that perfectly fits the first few fingers of your left hand while your right thumb nestles easily into the oval detent provided for the power slide-switch. Your right hand wraps neatly around the tool as well, resulting in an almost relaxed baseball-style golf club grip. You have tons of control.

The slide switch is efficient and worked well, even with gloved hands. Above it lies the shaft lock button which facilitates easy bit changes with the included collet wrench (for which there is no on-tool storage, unfortunately). As we found out later, you really need to crank the nut down fully in order to get a durable grip on the bit and avoid slips. One thing we didn’t get was the sliding speed switch. While it is super easy to slide and well-placed, we couldn’t help but notice its rather wide opening where dust and sanded material just loved to collect. We didn’t have any problems in the time that we used the tool, but it looked as if it wouldn’t take long for the switch to collect enough material to generate some problems.


Just above the speed dial is the battery indicator which lights up with the charge remaining each time the tool is switched on. Oddly enough it doesn’t time out, but rather stays lit during the entire time the tool is used. We also noted, with glee, that it appeared to be a true, real-time voltage meter – even dropping bars when shifting from low speed into high speed. Then, when we dropped the speed back down it once again went from one bar to two.

Around the speed dial is a stainless steel U-shaped hanger that is well-secured against the side of the tool, but flips up easily when you get underneath it with your nails to pry it free. The hanger extends about 2-inches above the base of the tool when hung upside down and can be used to hold the tool when using the Flex-Shaft flexible extension shaft.


The slot for the sliding speed switch just begs for dust and debris collection

The 12V Max battery is easily removed from the base of the tool by squeezing the sides and pulling it out. As we mentioned, the form factor is very close to that of the Bosch 12 Max line, but more importantly, that means that Dremel is able to benefit form the research its parent company is putting into lithium-ion battery technology. If the 300% reduction in charge time is any indication, this is the best move the company has yet made with respect to its cordless tools.

Accessories

At the top of the tool Dremel has an overmolded nose cap that unscrews to allow for any number of accessories to be added to the tool. The 8200 is compatible with all Dremel accessories and attachments, including the high-performance MultiSaw and Planer attachments. The included collet fits all of the included 1/8-inch accessories and we found that we could easily get the collet nut off with enough force while using the shaft lock button and giving it a firm twist. In terms of actual accessories, the Dremel 8200 comes with 28 – not a bad starter kit if you ask us. It also comes with an EZ Lock Mandrel, which we love since it’s so easy to load and unload sanding and cutting disks and other compatible accessories. As we used it, the 8200 quickly became more and more compelling to us, especially when we considered how it would be received by someone who’s never before had a Dremel rotary tool.

There are two kits available for the Dremel 8200 series in addition to the bare tool which is available at some retailers. The $99 8200-1 Kit, which we reviewed, comes with the 28 accessories, case and cutting guide. The 8200-2 includes an extra 12V Max battery and also a right angle attachment and sells for around $149.

Testing and Use

We don’t do a ton of project work, so forgive us if we didn’t carve out a hand-made hart with paperclip antlers and a custom engraved base. What we did do was take it on several jobsites and see what we could apply it to. Turns out, when you need a Dremel, nothing else will suffice. We found ourselves on a job where we were re-glazing a window. Not the kind of thing you naturally imagine when contemplating the use of a rotary tool. After looking at the job, however, it became apparent that once we took out the old, crumbling glaze, the best tool for cleaning out the frame and readying it for the new glass was the Dremel 8200. Without missing a beat I pulled it out of my truck and slapped in the 12V battery. Using one of the included sanding discs, we turned the inside of the window frame and removed a majority of the loose paint so that the new glaze had a place to bond.

Dremel 8200 Cordless Rotary Tool

We next used the included drywall cutting bit to cut out a hole for a switch in 1/2-inch sheet rock where we were adding a new light in a hallway. This is a fairly standard use for a Dremel tool for construction pros and do-it-yourselfers, but having a cordless tool that packed plenty of power made for a quick solution that didn’t require us locating an outlet or dragging a cord. During the use of this tool we ran up against a stud which taxed the blade more than it was designed for. At this time the collet slipped and allowed the bit to spin. Cranking down the collet nut with the included wrench solved the problem, but it’s important to note that you need to make sure the nut is very tight. I simply love the portability of this tool and found myself reaching for it over my corded model every time.

Conclusion

Dremel’s 8200 Cordless Rotary Tool is a great solution for those who use a rotary tool for craft projects as well as those who need something for the occasional household repair or upgrade. We found it to be quick, reliable, and a really great bargain for its $99 asking price. The bits included with this kit will definitely get you started and the low cost of entry had us putting a value rating of 9/10 on this tool – a rare score from Pro Tool Reviews. For raw Performance we awarded it a 8/10 since it did very well in the tasks we gave it, but could still benefit from some slight refinements. Nobody’s perfect, but the Dremel 8200 Cordless Rotary Tool Kit is really close.

Sours: https://www.protoolreviews.com/tools/dremel-8200-cordless-rotary-tool/1080/


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