Amazon.com : Synergy Digital Camera Battery, Compatible with Canon EOS Digital Rebel Digital Camera, (li-ion, 7.4V, 1500 mAh) Ultra Hi-Capacity, Compatible with Canon BP-511 Battery : Digital Camera Battery Chargers : Electronics
2x Pack - Canon BP-508 Battery + Charger - Replacement for Canon BP-511 Digital Camera Battery and Charger (1400mAh, 7.4V, Lithium-Ion) - Walmart.com
Amazon.com : Canon Original Genuine Battery Pack BP-511 BP 511 Akku Batterie Li-ion 20D 30D 40D 5D : Electronics
Amazon.com: BP-511 Lithium-Ion Battery - (1500 mAh) - Rechargeable replacement for the Canon BP-511 Battery and Canon BP-512 Battery : Electronics
Amazon.com : Canon BP511 1100mAh Lithium Ion Battery Pack for Select Digital Cameras and Camcorders : Camera Power Adapters : Electronics
CITYORK BP 511 BP-511 BP511 BP511A Camera Battery + LCD USB Dual Charger For CANON EOS 40D 300D 5D 20D 30D 50D 10D D60 G6 - AliExpress