Replacing the battery in my electric toothbrush

· Jan-Lukas Else · Oct. 5, 2026, 3:23 p.m.
diy personal projects DIY Electronics soldering Battery Replacement
Summary
The author shares their personal experience of replacing an electric toothbrush battery, detailing the process of soldering for the first time in years, and upgrading to a larger capacity battery for better performance.
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