AA USB Rechargeable Lithium Batteries (4-Pack)

USB rechargeable lithium-ion AA battery-no battery charger needed, charger built-into the battery. Use the USB port on your computer. LED light indicator: Charging-Red light Flash, Fully charged – Red light on.”,”highlights”:[“Dual-safety design ensures 100% safety”,”USB rechargeable battery fully charges in 60 minutes”,”Protects from overcharging and prevents short circuits”