DIY Projects with Wide Applications: 12V rechargeable battery with DC 5521 male connector and female connector, cable connector are included, compatible with CCTV camera, IP camera, RC Car, LED panel, amplifier, modem, walkie-talkies, camcorders, aviation models, LED strip, electronic piano, optical network unit, router, car DVR and other 12V devices.
Safe Performance: Built-in intelligent chip to provide overcharge protection, overdischarge protection,short circuit protection, temperature control protection.
Long Using Life: This 12V DIY battery pack built-in rechargeable lithium-ion battery, it comes with over 800 times charge-discharge cycles without memory effect.
Very Important: 1. Please make your device port is DC 5521. 2. Please use our 12.6V 2A adapter.