This tablet battery is designed specifically for Apple devices and has a capacity of 5400 mAh with a voltage of 3.7 V. It is a rechargeable battery that can be used for various purposes such as powering sound and vision devices. Whether you're looking to replace an old battery or need a backup, this battery is a reliable choice. With its high capacity, you won't have to worry about running out of power too quickly. Make sure your device is always ready to go with this durable and long-lasting battery.