Yuasa NP12-6 NP12-6 VRLA 6 V 12 Ah AGM (W x H x D) 151 x 98 x 50 mm 6.35 mm blade terminal Maintenance-free, VDS certifi | Conrad.com
UPG General Purpose Deep Cycle AGM Rechargeable Sealed Lead Acid 6120 Electric Fence Batteries in the Device Replacement Batteries department at Lowes.com