BM Premium BP-820 Battery for Canon VIXIA XA10, XA11, XA15, XA20, XA25 – Big Mike's Electronics
Amazon.com: Synergy Digital Camera Battery, Compatible with Canon VIXIA XA30 Digital Camera, (Li-ion, 7.4V, 2600mAh) Ultra High Capacity, Replacement for Canon BP-820 Battery : Electronics