Rechargeable aa Batteries with ChargerThis imuto rechargeable aa lithium batteries kit includes 8 pack 2000mWh aa batteries and a slim 0.65" fast charger (8 slots). Fully charge 1-8 batteries in 1.8 hours (requires 5V/3A adapter) 2000mWh Real EnergyThis imuto lithium AA batteries cell has 2000mWh real energy (rated energy 1700mWh, rated capacity 1133mAh). It is ideal for a variety of household devices, including remote controls, battery-powered toys, LED flashlights, wireless mice, wireless keyboards, wall clocks, alarm clocks, kitchen timers, and radios. 1600 Cycle Lifespanimuto lithium rechargeable aa batteries has an amazing cycle life of up to 1600 charging cycles with no memory effect. Can effectively reduce your battery costs and carbon footprint. (Rated energy stays >70% after 1600 charges) 1.5V Voltage Outputimuto rechargeable aa lithium batteries delivers a stable 1.5V voltage output throughout the discharge cycle, has a stronger energy output than 1.2V NiMH