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American Power Conversion (APC) - RBC18 - Battery, Rechargeable, Rectangular, Lead Acid, Connector, UPS, RBC Series - RS
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Amazon.com: BTI RBC18-SLA18-BTI UPS battery - 1 x lead acid - for APC PowerStack 450VA : Electronics
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APC UPS Battery Replacement, RBC18, for APC Smart-UPS Models SC250RM1U, SC450RM1U and select others - Newegg.com
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American Power Conversion (APC) - RBC18 - Battery, Rechargeable, Rectangular, Lead Acid, Connector, UPS, RBC Series - RS
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