Amazon.com: Replacement Battery for APC Back UPS ES 350 : Health & Household
Amazon.com: SPS Brand 12V 8Ah Replacement Battery for APC Back-UPS CS 350 UPS Battery : Health & Household
Mighty Max Battery 12V 1.3Ah Battery for APC Back UPS ES 350 Rechargeable Sealed Lead Acid 1213 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Amazon.com: APC Back-UPS CS 350 12V 8Ah UPS Replacement Battery Beiter DC Power : Health & Household
12V 1.3Ah Replacement Battery for APC Back UPS ES 350 + 12V Charger - Walmart.com