Blackmagic Design LP-E6 Battery BATT-LPE6M/CAM B&H Photo Video
Amazon.com: UPLUS LP6-5.0 6V 4.5Ah Rechargeable AGM Battery, DJW6-4.5A Sealed Lead Acid Replacement Batteries for Auto Deer Feeder, Kids Power Wheels, Game Hunting Camera, Emergency Lighting, Ride on Cars etc. : Automotive
Leoch LP6-7.2 6V 7Ah Sealed Lead Acid Replacement Battery: BatteryClerk.com
Mighty Max Battery 6V 7Ah SLA Battery for Leoch LP6-7, LP 6-7 Rechargeable Sealed Lead Acid 670 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com