Specification --Model: Rechargeable AA Li-ion Battery --Rated capacity: 3400mWh --Type:Lithium --Output voltage: 1.5V constant voltage --Size:50*14mm --Charging method: Type C Cable charging --Service life: 1500 times --Indicator light: The green light flashes when charging, the green light is always on when fully charged (the light does not change) Used for: keyless-entry devices, garage door openers, car remote control,key fob, wireless doorbells, ceiling fans, GPS tracker,home alarm system, security device, igniter,LED flashlight, toy, clock, razor, electronic dictionar Features: --1.It does not contain mercury or cadmium and is environmentally friendly; --2.Advanced charging technology, no memory effect; --3.Can be reused more than 1500 times;| Product Packaging: 1/2/3/4 PCS 1.5V lithium battery 1*Type-C Cable 1*Battery Box