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Amazon.com: Mighty Max Battery 12V 8AH Replaces APC RBC2 BK400 BK300 BP500 BP500UC SU420NET - 4 Pack : Electronics
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Amazon.com: APC UPS Battery Replacement, RBC2, for APC Back-UPS Models BE500R, BK300C, BK350, BK500, BK500BLK, BK500M, BK500MC, BK500MUS, and SC420, SU420NET black : Electronics
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APC UPS Battery Replacement for APC Back-UPS Models BE500R, BE550MC, BK300C, BK350, BK500, BK500BLK, BK500M, BK500MC, BK500MUS, and SC420, SU420NET (RBC2) - Newegg.com
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MIGHTY MAX BATTERY 12V 8AH Replaces APC RBC2 BK400 BK300 BP500 BP500UC SU420NET - 4 Pack MAX3429683 - The Home Depot
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American Power Conversion (APC) - RBC2 - Battery, Lead-Acid, 1.90 in. (Max.) H x 4.00 in. (Max.) W x 5.50 in. (Max.) D - RS
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