USB Rechargeable AA Batteries, 1.5V Constant Output, Chargeable Over 1000 Cycles, Fast Charging, Built-in Smart Protection, Safe and Reliable for Home and Office Devices (12 Packs)

Rechargeable & Reusable: KeepSync 1.5V rechargeable AA batteries can be charged over 1000 times. One set can replace hundreds of disposable batteries, helping reduce waste and the need for constant replacements. Over time, that means lower battery costs and less hassle for daily use.
High-Capacity & Constant 1.5V Power: These aa batteries rechargeable combine a 2800mWh real capacity with steady voltage from start to finish. They help devices such as toys, cameras, and remotes run longer and operate smoothly without power drops or performance loss during use.
Type-C Charging Port: Built-in Type-C interface allows easy recharging with common USB Type-C cables from adapters, power banks, or computers. A Type-C charging cable is included, capable of charging four aa batteries at the same time.
Smart Multi-Protection System: Each double a rechargeable batteries includes a built-in chip that manages charging and discharging to help prevent overcharge, short circuit, and overcurrent. When unusual current or low voltage is detected, the battery stops output and the LED blinks 8 times to show its protection status.
Widely Used: Our aa rechargeable batteries power everyday devices like keyboards, mice, remote controls, and toys, and also keep home electronics such as game controllers, VR, doorbells, and smart locks running reliably with stable energy.