3.7 volt rechargeable battery: charging and discharging voltage operating range: 3.0v to 4.2v; nominal voltage: 3.7v
Battery plug model: ph connector-2 pin, the red wire represents the positive terminal (+) and the black wire represents the negative terminal (-)
Safety device: It adopts electric welding technology and is equipped with an internal battery protection system, providing multiple layers of protection such as overvoltage, undervoltage and overcurrent
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