Amazon.com: (2 Pack) ExpertPower 12 Volt 20 Ah Rechargeable SLA Battery [EXP12200] : Health & Household
12V 7Ah SLA Battery Replacement for PowerStar PS12-7-20 - MightyMaxBattery
Amazon.com: CSB HRL1280W 12Volt 20 Amp Hour Compatible Battery Replacement w/Internal Thread Terminals by UPSBatteryCenter : Health & Household
Mighty Max Battery 12V 22Ah UPS Replaces 20Ah Leoch LP12-20, LP 12-20 Rechargeable Sealed Lead Acid 12220 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
12 Volt 20 Ah Sealed Lead Acid Rechargeable Battery with Insert Terminal - Free Shipping | Battery Mart