Package included: 12v rechargeable battery pack*1, 12v charger, DC Power Connector(1 x Male + 1 x Female) Product InformationDC5521 Male Connector, 12V Rechargeable Lithium Battery capacity: 2800mAh, battery type: Li-ion, input: DC12.6V/1A, output: DC9.0-12.6V/5A(Max), charger output: 12.6V/1A; 12V battery No memory effect DIY Projects with Wide Applications 12V rechargeable battery with DC 5521 male connector, DC power connector and DC power pigtail cable are included, compatible with Robot Toys, RC Cars, Kid Ride Car, DIY Project, Electric Pianos, Solar panels, CCTV Cameras, Wireless Cameras, Walkie Talkies, Digital Cameras, Video Cameras, VCRs, Bluetooth Devices, CD Players, Portable DVDs, Toy Models, Electric Scooters, 12V Turn Signal Lights, Vehicle Mounted CCTV camera, IP camera, LED panel, amplifier, modem, Camcorders, Aviation models, LED strip, Electronic piano, Optical Network unit, Router, Car DVR etc....Advanced Safety ProtectionBuilt-in intelligent chip safegu