This AAA size lithium battery is a high-performing power source for your high-drain devices. With a voltage of 3.7V and an amp hour rating of 0.3Ah, this rechargeable battery will keep your electronics running smoothly. The chemical composition of this battery is lithium, making it a reliable and long-lasting choice. Manufactured in China, this battery comes with a manufacturer warranty of 1 year. Its size of 2/3 AAA and capacity of 350mAh make it compact and easy to use. This battery is not a custom bundle, but it is a unit type. Whether you need it for your flashlight, remote control, or other electronic device, this AAA size 3.7v 10440 350mAh rechargeable lithium battery is a dependable choice.