2x Pack - Canon BP-508 Battery + Charger - Replacement for Canon BP-511 Digital Camera Battery and Charger (1400mAh, 7.4V, Lithium-Ion) - Walmart.com
Vivitar CB-E10 7.4V and 1100 mAh Canon LP-E10 Li-ion Replacement Battery Pack - Walmart.com
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
Palo 2650mah Bp-511 Bp 511 Bp511 Bp511a Battery + Lcd Usb Dual Charger For Canon Eos 40d 300d 5d 20d 30d 50d 10d D60 G6 Camera - Digital Batteries - AliExpress
Amazon.com: BP-511 Lithium-Ion Battery - (1500 mAh) - Rechargeable replacement for the Canon BP-511 Battery and Canon BP-512 Battery : Electronics