SJZBIN USB Charging Cable JST Plug 3.7V USB Charging Cable Male JST Plug to USB Connector Lithium Battery Charger for RC Aircraft Helicopter Toys Accessories

Plug model: 3.7V USB charging cable JST male plug Input voltage: DC 5V 0.5-2A Output voltage: DC 4.2V 500mA Charging instructions: the red light is on when the power is plugged in, the red light is off when the battery is connected to charge, and the red light is on when the battery is fully charged. It will automatically stop when it is fully charged and will not overcharge. Scope of application: polymer lithium battery, remote control aircraft lithium battery. Lightweight, portable, reliable and powerful USB charger. Polarity description: 3.7V JST male plug 1 negative 2 positive Packing list: 2 pieces of USB charging cable 3.7V lithium battery JST male plug charging cable