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How to disassemble and replace the battery.
Additional link: Wahl 9899L Barracuda Trimmer battery Not Holding Charge
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Remove the shaver blade and slide the grips off on each side. You can use a pry tool in the notch to assist.
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Remove the outer shell with pry tools.
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Remove the inner water poof shell and 3x screws. The seal may making it a little difficult to separate, but careful prying with the plastic pry tool should help.
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The connection between the circuit board and charging pins are friction fitted. Carefully lift the circuit board up, separating it from the pins.
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Remove the battery, circuit board and motor all together.
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Remove the outer shrink wrap from the battery. There will be another circuit board under the wrap directly soldered to the battery, this is the charge controller for the battery. Remove de-solder the tabs and solder the new battery in place. Use Kapton tape to insulate exposed battery contacts and charge controller board.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
