UPG 12V 22Ah Battery Replacement for Solar Booster Pac ES1217, ES1230, ESP5500 730052757576 | eBay
MIGHTY MAX BATTERY 12-Volt 22 Ah SLA (Sealed Lead Acid) GEL AGM Type Replacement Battery for Mobility and UPS Systems (2-Pack) ML22-12GELMP2 - The Home Depot