A useful battery pack will power a camera and mic for over 8 hours on a full charge. Can be used with a power splitter to power more than one camera at a time. And it can use a remote to control the battery on/off.Small and flat, easily fits inside a pocket. This is a very reliable battery pack and we really recommend it for use with our cameras. Features and Benefit -High quality 12 V Li-Ion rechargeable battery pack -Made of Four 1800mAh cylindrical 18650 cells with poly switch for full protection -Light weight and higher energy density than any rechargeable battery -No memory effect and rechargeable -Longer storage life than NiMH battery -Built-in IC chip will prevent battery pack from over charge and over discharge andprolongs battery life -Perfect for building 12V battery pack for CCD cameras, RC toy, robots, laptopand DVD external battery etc. Technical Specifications -Capacity 1800mAh - Voltage Input: 12.6V DC - Voltage Output: 12.6V - 10.8V DC - Dimensions 9.6cm x 6.6cm x 2.2cm - Weight 6.0 oz - Max. charge current 1C (2.0A) - Max. discharge current 2.5C (5A) - Cut off voltage 12V Main Accessories 1. 12V Li-ion Battery Pack: one 2. Charger: one 3. Cable: one 4. Manual: one 5. Remote Control: one