Lithium-ion Rechargeable Batteries: These 3000mWh Zepath AA batteries are rechargeable lithium-ion cells with a constant 1.5V output, offering a high capacity and long lifespan of up to 1600 charge/discharge cycles. Fast Charging and Versatile Compatibility: The included 8-slot charger supports 2.5-hour fast charging for 1-8 AA batteries using a Type-C port compatible with various power sources like laptops, car chargers, and power banks. Ideal for High-Drain Devices: With a 2A maximum discharge current, these batteries are well-suited for high power consumption devices such as gamepads, VR grips, doorbells, cameras, flashes, door locks, microphones, radios, toys, alarm clocks, scales, and blood pressure monitors. overheating and short circuit.Long-Lasting and Convenient: With a low self-discharge rate and no memory effect, these batteries offer reliable and long-lasting power for everyday use, while the integrated charging and storage design provides a convenient all-in-one solution. Rechargeable aa batteries:The smart display light helps you know the charging status of the battery. Flashing Green Light indicates charging, Green Light indicates fully charged, and Red Light indicates inappropriate/damaged battery Rechargeable aa Batteries Lithium 8 Pack with Fast Charger