Micro USB TP4056 boards! Nice!
I’ve recomended them a bunch of times. Now I can direct people to your site even more then I already do!
With a D cell battery holder you can make a 32650, 26650 charger for $3. Use dual TP4056 boards for 1.7A charge current.
~ Edit ~
RMM, tp4056 doesn’t seem to actually do a full 1A. More like 850mA.
I would like to think most people wouldn’t complain about a 150mA difference tho.
HKJ review.