Amazon.com: Kastar Battery (1-Pack) for Canon NB-7L, CB-2LZE Work with Canon PowerShot G10, PowerShot G11, PowerShot G12, PowerShot SX30 is Digital Cameras : Electronics
Canon Battery Pack NB-12L | Canon U.S.A., Inc.
ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery - Walmart.com
Amstron 12V/18AH Sealed Lead Acid Battery w/ NB Terminal