Wallet-sized LiIon Charger build for pennies!

Be nice to have a thread for all of these mods. Here’s the one I did for a 10180 that went with a light in the geocash box. TP4056 board and brass contacts epoxied to a piece of 1” Fiberglas cloth and potted. Resistor mod for ~50mA.

I remember that cool 10180 one for the Geocache box. i wonder if its still in the box traveling, or if anyone traded it out yet.

freaking awesome!

The hard part was keeping the port clear of potting as it has lots of small,openings. Mostly just make a lip around the board with tape(I use masking tape much more often than duct tape). Clear tape is better for working with epoxy though. JB weld has a partly cured state that is easy to trim and not sticky, somewhat like bondo. Clear epoxy is sticky all the way until cured, can’t touch that.