UPG General Purpose Deep Cycle AGM Rechargeable Sealed Lead Acid 645 Alarm System Batteries in the Device Replacement Batteries department at Lowes.com
Powery GEL battery for UPS APC Smart-UPS 1500 20Ah (replaces also 18Ah), 12V, 20Ah/240Wh, Lead-Acid battery, rechargeable, 181mm x 76mm x 167mm, 100% Compatible. New - AliExpress Consumer Electronics