3.7volt 500mah Rechargeable Battery with USB Charger Cable, JST 2pin Plug 3.7 V Li-Ion Batteries 14500 Rechargeable Battery Pack for Electric Toy Car& Small Fan&Electronic Devices Etc
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