Amazon.com : Synergy Digital SDLED-M52 Compatible With Canon FS11 Camcorder Lighting for Action Cameras, Camcorders and Phones - with a 4 AAA NiMH Batteries-1000mAh : Electronics
Canon -vixia HF-R11 And Canon FS11 | eBay
Battpit: Camcorder Battery Replacement for Canon FS11 (900 mAh) BP-808 7.4 Volt Li-ion Camcorder Battery - Walmart.com