This is mini charging module. This module is used for single-or multi-section parallel lithium lithium rechargeable battery, charging from the USB (Universal Serial Bus) port to take power. Charging method: linear charge 1%
Charging current: 1A adjustable
Charge accuracy: 1.5%
Input voltage: 4.5V-5.5V
Full charge voltage: 4.2V
Charging indicator: Red charging green full charge
Charging input interface: Mini USB
Working temperature: -10°C to +85°C
Reverse: NO
Size: 25 x 19 x 10mm