Lead rechargeable battery, Faston connections, 6V 3.2Ah
6 Volt Lantern Battery - Arbor Scientific
Duracell MN908 6 Volt Alkaline Lantern Spring Top Battery – Batteries Inc.
Varta 6V Super Heavy Duty Lantern Battery - 1 Pack - Bunnings Australia
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