- Circuit board B- connects power negative, B+ connects positive. Don’t inversely connect, it will result in burning of board. Make sure there is insulation between power and circuit when install the battery
- 2A output is not continuous current, it changes according to USB connecting load, automatic current output as per load
- If battery is connected incorrectly, the reverse polarity will burn the circuit. So, make sure to check the battery polarity when connecting.
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