This battery is a 9V 600mAh rechargeable battery. It is compatible with most devices that use a 9V battery. It has a LED indicator that lets you know when the battery is charging. This battery is perfect for when you need a battery that can be recharged and can be used in most devices. EBL 9V 600mAh Rechargeable Battery It is no secret that electronic devices are not getting any smaller, but this is not necessarily a bad thing. EBL has the solution for your bulky device by providing a slim and lightweight battery that is not only easy to carry but also long-lasting. These batteries are rechargeable and come in a pack of two, so you will never be without power. The EBL 9V 600mAh Rechargeable Battery has a high capacity and is able to hold up to 500 charge cycles. It also features long life and is designed to provide up to 800 hours of standby time. The EBL 9V 600mAh Rechargeable Battery is perfect for those who want to save space and reduce the weight of their devices. The battery is lightweight and has a long life so you can feel confident that it will be able to power your device when you need it most. It also features a high capacity so you can be sure that it will last.