Duracell Ultra Lithium 245 2CR5 6 Volt Battery - Batteries for Photo
Lithium Battery Smart 12,8V & 25,6V - Victron Energy
Amazon.com: Duracell 245-6V Lithium-Battery, 1 Count Pack, 245 6 Volt High Power Lithium-Battery, Long-Lasting for Video and Photo-Cameras, Lighting Equipment, and More : Electronics