Avoid changing batteries by powering the camera while it\'s connected to a computer or wall outlet. The DC coupler fits inside your compatible camera\'s battery compartment to connect the AC adapter for prolonged use. Benefits Ideal for extended periods of shooting, scientific applications and time-lapse photography Replaces your camera\'s battery for direct connection to the mains electricity supply Comprises of a DC coupler and AC power adapter in one useful kit For use with compatible cameras only, please check you have the right compatibility for your camera What\'s in the box ACK-DC50 AC Adapter Kit Power Cable Compatibility PowerShot G12