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Power-Sonic 2 Pack - 6v 4ah Sealed Lead Acid Battery (6v4ah , 6 Volt 4 Amp Hour | eBay
UPG 4 Pack - 6 VOLT 4.5AH RECHARGEABLE GAME DEER FEEDER BATTERY 6V | eBay
Mighty Max Battery ML4-6- 6 Volt 4.5 AH, F1 Terminal Rechargeable Sealed Lead Acid 645 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
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