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APC Back-UPS CS 350 USB/Serial - Great buy
APC CS 350 Battery Replacement – hardwarexpress
Mighty Max 12V 8Ah SLA Replacement Battery for APC Back-Ups CS 350 - 2 Pack 29483355193 | eBay
Amazon.com: SPS Brand 12V 8Ah Replacement Battery for APC Back-UPS CS 350 UPS Battery : Health & Household
APC CS 350 Battery Back Up Power Supply No Battery
Amazon.com: Replacement for Battery BACK-UPS CS 350 BK350 - UB1290 Universal Sealed Lead Acid Battery (12V, 9Ah, 9000mAh, F1 Terminal, AGM, SLA) - Includes TWO F1 to F2 Terminal Adapters - CP1500AVRLCD :