lithium battery charging board

lithium battery charging board

this is a charging PCB for a lithium battery, maximum 4.2V.

  • charges lithium ion battery up to 4.2V with a 5V 1A USB input source
  • over-charge protection of 4.3V
  • under-charge protection of 2.9V
  • input specs: 5V 1A (USB standard)
  • 180mA trans current
  • red LED = charging, green LED = charged, blue LED = load on USB port (has footprints for adding 3mm breakout LEDs)
  • ~ 50mm x 20mm x 9mm