2A 5V 4In1 Charger Protection Board For 3.7V 4.2V Li-Ion Battery 323163214498

2A 5V 4In1 Charger Protection Board For 3.7V 4.2V Li-Ion Battery 323163214498

1、This module can protect lithium battery from burnout during charging or discharging. 2、Provide many protection functions against over-current,

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