Введение
The Philips Sonicare 9350 electric toothbrushes has rechargeable lithium batteries. If the electric toothbrush doesn't start, battery failure is most likely to blame. If you need to replace the battery, follow this guide.
This guide requires soldering so if you’re not familiar or would like more information, check out this article on the site.
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Remove the toothbrush head.
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Use a screwdriver to pry gently around the bottom of the toothbrush.
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After the bottom of the toothbrush is pried loose, remove it from the base of the brush.
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Use a spudger to open the two clasps inside the toothbrush handle in a downward motion.
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Turn the toothbrush upside down and push down on a hard surface—this will slide the toothbrush's internal body out.
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Open the protective cover of the battery.
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Check the battery model.
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Open the protection cover of the circuit board.
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Find the welding points of the positive and negative electrodes of the battery and use the soldering iron to desolder.
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The battery will fall off after desoldering as shown in the figure.
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Use a spudger to pry the battery out at a 45 degree angle.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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