The Aegis Battery 24V 10Ah Li-Ion Battery is a state of the art rechargeable battery pack made with 18650 Li-Ion cylindrical cells packed with black PVC shrink wrap. It is perfect for bike lighting, RC toys, robots, laptops, and DVD external batteries. The battery comes with pre-assembled integrated Anderson Power Pole connectors allowing for easy compatibility. The Aegis battery has a built-in battery management system (BMS) that keeps the battery running at peak performance and protects the cells for thousands of cycles, including over-charge, over-discharge, over-current, and short-circuit protection.