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Remington MB4040 Battery Replacement

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The battery is where the charge is stored and allows the motor to run. The battery is connected to the motor through the motherboard.

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  1. Remington MB4040 Battery Replacement, Remove Blade Assembly: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Blade Assembly: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Blade Assembly: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Press the black button below the blade to remove the blade.

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  2. Remington MB4040 Battery Replacement, Remove Back Cover Hardware: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Back Cover Hardware: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Place the device so the back of the product is facing up.

    • Remove the two 11.0 mm PH00 screws from the black plastic housing at the bottom of the device.

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  3. Remington MB4040 Battery Replacement, Remove Front Cover Hardware: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Front Cover Hardware: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Front Cover Hardware: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the chrome plated plastic piece by using the plastic opening tool to pry it from the housing assembly.

    • Remove the small clear plastic piece that covers the zoom wheel numbers.

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  5. Remington MB4040 Battery Replacement, Front Cover (cont.): crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Remington MB4040 Battery Replacement, Front Cover (cont.): crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the two 16.0 mm PH00 screws from the front cover.

    • Use the blue plastic opening tool to pry apart the two halves of the device.

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  6. Remington MB4040 Battery Replacement, Blade Button Removal: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Remington MB4040 Battery Replacement, Blade Button Removal: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the black blade button and the two 10.0 mm springs, which are sandwiched between the cover assembly halves.

    • The blade button is sandwiched between the halves and the two springs may fall out when the halves are separated.

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  7. Remington MB4040 Battery Replacement, Remove Motherboard: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Motherboard: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the four 9.0 mm PH00 screws from the motherboard.

    • Use the plastic opening tool to remove the motherboard from its housing.

    • This can be completed with the Remington MB4040 Zoom Wheel Replacement installed or removed. Just adjust the zoom wheel until it no longer covers the motherboard.

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  8. Remington MB4040 Battery Replacement, Remove Battery: crwdns2935265:07crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Battery: crwdns2935265:07crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Remington MB4040 Battery Replacement, Remove Battery: crwdns2935265:07crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the thermal switch from the battery by using the spudger to pry it from the adhesive.

    • Remove the battery by desoldering the battery from the motherboard.

    • Soldering tabs hold the battery onto the motherboard.

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To reassemble your device, follow these instructions in reverse order.

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Cameron Carnahan

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USF Tampa, Team 1-5, Blackwell Winter 2015 crwdns2935289:0USF Tampa, Team 1-5, Blackwell Winter 2015crwdne2935289:0

USFT-BLACKWELL-W15S1G5

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Great work - but help on where to source the battery would be good too :)

Matt Purnell - crwdns2934203:0crwdne2934203:0

It's available as a generic - it's a '14500' Li-Ion battery, 3.7V - typically 750-800mAh. Dimensions: 50mm x 14mm (diameter).

Matt Purnell - crwdns2934203:0crwdne2934203:0

I have seen two types of these batteries: protected and unprotected. Which type do we need?

Amaury C -

You did everyrhing except the most important part to me

How did you unsolder the battery, and solder the new battery?

I was going to buy the tools from the local store but realized i don't know how to appropriately unsolder/solder battery tabs.

Non the less you are the only one who made such explanation, thank you.

Rakan - crwdns2934203:0crwdne2934203:0

If you happen to lose the two springs, you can cut off 2 pieces from the spring of a pen :P

Merry Trimming & A Happy New Beard !

Mads Larsen - crwdns2934203:0crwdne2934203:0

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