Replace your disposable batteries with the Laser USB-C Rechargeable AA Battery 4-Pack for better value and convenience. Ideal for remotes; toys; clocks; or any device that requires AA batteries. Key Features: - Safe: Equipped with a battery management processor to prevent overcharging; deep discharge; overheating; and short circuits. - 1000 Recharges: Save up to 95.9 Kg of landfill and $7460 with up to 1000 recharges compared to standard alkaline batteries. - USB Charging: Charge your batteries with the included USB-A to USB-C cable from any USB outlet—wall adapter; car adapter; power bank; laptop; or airline seat. - Fast Charging: Charge one or four batteries simultaneously in 1-4 hours; depending on the charger and number of batteries. What's in the Box: - 1x USB-C Rechargeable AA Battery 4PK