For $17-30, I’ll pass. :bigsmile:
TP4056 usb charger board. $1 on ebay (ebay search). 850mA charge current each, CC/CV chip. For 32650 you could use dual boards for 1700mA. HKJ tp4056 review.
For low currents (10440, 16340) I prefer the MCP73831 chip. Bit better charge curve. Micro lipo or Lipo nano. Tho the tp4056 board can be modifed for low currents as well.