★ Input connector: 20PCS Micro USB socket, which can be directly used as an input to charge the lithium battery with a mobile phone charger.
★ Input voltage: 4.5-5.5V (recommended voltage 5V); final charging voltage: 4.2V + / - 1.5%. Charging current: 1A by default. However, you can change this by changing the 1k2 resistor next to the ‘IN-’ pad at the bottom left of the board. Note: Reverse connection is not allowed.
★ Light status: No light when no load, red light when charging, green light when full. Note: Charging with 5 V when connecting the battery for the first time activates the protection circuit.
★ 18650 battery holder cable: All 18650 battery holders with cables are tinned, the black and red two-wire design is excellent for easy soldering and connection.
★ Package includes: 10 x 18650 battery case; 20 x Micro USB charging module.