The job is not as simple as it could be but I get these things vibrate a lot, so a battery that just pulled loose may shift around inside. But this video at least gives an idea of what to expect and if your toothbrush is already as the end of its useful battery life, what have you actually got to lose.
Watch at https://youtu.be/e5uD2j3Sx28
#technology #DIY
#^Ep 33 Electric Toothbrush Battery Replacement/Upgrade
Replacing/Upgrading the battery in an electric toothbrush In this video I step through the swap out of the old 600mAh NiCd battery with a 2000mAh NiMh batter...
source https://gadgeteer.co.za/sometimes-expensive-electric-toothbrush-just-needs-aa-rechargeable-battery-replaced
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