BP-BP511 : Replaces Canon BP-514 and others — Batteries America
Buy ProMaster Li-ion Battery (7.4V 1600mAh) - Canon BP-511A - National Camera Exchange
Canon EOS 30D Battery - Camera Batteries
Amazon.com: BP-511 BP-511A BP-508 BP-512 BP-522 BP-535 Battery Charger for Canon EOS 10D, EOS 20D, EOS 20Da, EOS 300D, EOS 30D, EOS 40D, EOS 50D, EOS 5D, EOS D30, EOS D60, EOS
Canon BP-511A Battery
Kastar Battery (3-Pack) and Charger for Canon BP-511, BP-511A, BP511, BP511A and EOS 5D, 10D, 20D, 30D, 40D, 50D, Digital Rebel 1D, D60, 300D, D30, Kiss Powershot G5, Pro 1, G2, G3,