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Amazon.com: Replacement Battery for 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 :
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Amazon.com: UPSBatteryCenter APC Back-UPS CS 350 (BK350) Compatible Replacement Battery : Electronics
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Amazon.com: APC Back-UPS CS 350(BK350) 12V 7Ah UPS Battery - This is an AJC Brand Replacement : Electronics
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