Product Information:Battery size:57*20*67(MM) ; Type: 12V Rechargeable Lithium Battery,DC5521 Male Connector; Capacity: 2800mAh 33.6Wh; Input: 12.6V/1A, Output: 9-12.6V/3A Max.(Recommended for use with 12V devices with an output current of 1-3A.) Universal Application and Great Practicality: Battery Compatible with 12V devices or outdoor 12V devices, Robot Toys, RC Cars, DIY project, Bike Light, Fishing Light, Solar panels, LED Strips, CCTV Cameras, Outdoor CCTV, Walkie Talkies, Digital Cameras, Video Cameras, CD Players, Players, Toy Models, Electric Pianos, Routers, etc Safe and Reliable: Built-in multiple protection systems, including overcharge protection, over-discharge protection, short-circuit protection, and temperature control, ensuring safety and prolonging battery life Long-last battery life: No memory effect, more than 1000 cycles of charging and discharging. No need to worry about frequent battery changes, convenient and money-saving Package included: 12v rechargeable battery pack*1, 12.6v charger, DC Power Connector(1 x Male + 1 x Female),5521 Cable(1 x Male + 1 x Female) Rechargeable 12V Lithium Battery with Charger, Bare Leads Wire Battery Pack Compatible with 12V Devices, DIY Project, RC Car, Solar Panels, LED Light Strip, CCTV Camera and outdoor 12v Devices