Yuasa NP4-12 12V 4Ah Valve Regulated General Purpose SLA Battery
Mighty Max Battery 12V 5Ah 4ah Alarm System Back Up Vista 20P ADT Rechargeable Sealed Lead Acid 1250 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
NP4-12 - Enersys - Rechargeable Battery, 12 V, Lead Acid