12V DC Car Auto Power Charger Adapter Cord For GARMIN GPS StreetPilot C510 C 510 - Newegg.com
Garmin StreetPilot c550 Plug-and-play navigation system with Bluetooth® capability at Crutchfield
One Familys Blog: GPS Review - Garmin StreetPilot C series (C310, C320, C330, C340, C510, C530, C550, C580)
Amazon.com: Gomadic Portable AA Battery Pack Designed for The Garmin StreetPilot C510 - Powered by 4 X AA Batteries to Provide Emergency Charge. Built Using TipExchange Technology : Electronics
Amazon.com: NewPower99 Battery Replacement Kit with Battery, Video Instructions and Tools for Garmin StreetPilot C510 : Electronics