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Overview
Stock update: I have an additional batch of PCBs for this charger ordered and expect to have it back in stock around 11/14.
Have a tiny LiPo battery and no way to charge it? This is for you!…
Stock update: I have an additional batch of PCBs for this charger ordered and expect to have it back in stock around 11/14.
Have a tiny LiPo battery and no way to charge it? This is for you!
It's a tiny, USB-powered charger for single-cell lithium polymer / lithium ion (3.7V/4.2V) batteries, with a JST connector for the battery. It's based on the MCP73832 chip from Microchip Technologies, set up to charge at a 40mA charge rate. There's an indicator LED that's lit while it's charging and turns off when the battery is charged.
It's intended for the smallest, lowest-capacity of LiPo batteries. You could of course charge a larger battery with it, but it could take a while!
We built these specifically because we had a few of these amazingly tiny LiPo batteries lying around but no chargers that could charge at a low enough rate for them!
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