Dual USB 5V 1A 2.1A 18650 Battery Charger Module with LCD DisplaySKU: ELC5026
- Micro USB input: 5 V 1A
- USB output: 5V 2.1A / 5V 1A (Dual USB interface)
- Charging screen: intelligent digital screen
- Type of batteries: liquid lithium ion batteries (18650)
- Product size: 57mm x 28mm
- Screen size: 27mm x 17mm
- Input Voltage: 3.7V
- The circuit board is connected to the negative battery B-, B is positive
- Check polarity, wrong wiring will burn the board.
- the battery is connected in parallel welding.
- There is insulation between the battery and the circuit board
- The battery can not touch the circuit board, may cause short circuit if it does.