Sometimes you got to just do something for the fun, this project is probably never going to make a penny but it’s good to play
Had enough of the cheapo components on the £2 ebay lithium charger modules causing the charge on these batteries to be all over the place so designed my own using good quality PCBs and 1% components.
Glad to report that they work great. The units are stackable and are set to charge at about 4 x 750mah so as to give the cells a good long charge and to make sure they don’t get hot.
Great for recycled cells for Powerwalls or ebikes