Mighty Max Battery 12 Volt 7ah Battery with F1 (.187") Terminals Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
12 Volt 7Ah F1 Sealed Lead fresh Acid 6FM7 - UPS / Sealed Lead Acid - Watch Batteries - AA AAA batteries - Rechargeable Batteries - Discount Batteries - Shipped Free in US
Amazon.com: VATRER POWER 12V 7AH LiFePO4 Battery Deep Cycle Lithium Battery, Built-in BMS, 5000+ Cycles Rechargeable Battery, Perfect for Solar System, UPS and More : Health & Household