I break open the broken battery packs from power tools, vacuums or whatever.Richfields wrote: ↑ Looking for a reasonably affordable and consistent quality 18650 battery. Anyone have a good site/source? I have also experienced inconsistencies in quality and capacity.
These packs are made of 4 to20 18650 cells and most of them are still good. If the pack is genuine OEM, the cells are usually decent quality Samsung/LG/Sony
Edit: Don't electrocute yourself. These packs can potentially deliver really high current so treat it as if you were wiring a live 120V outlet.
Last edited by milkmilk on Aug 10th, 2020 12:16 pm, edited 1 time in total.