6.4V 4.5Ah Lithium Deep Cycle Battery | Jaycar Electronics
4 Pack 6 VOLT 5AH RECHARGEABLE GAME DEER FEEDER BATTERY 6V 840140936117 | eBay
Mighty Max Battery 6V 4.5AH SLA Multipurpose Rechargeable Battery Rechargeable Sealed Lead Acid 645 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com