Extended Runtime Battery Pack (2 strings) for use with T91-2000, T91i-2000 and T91-3000 (maximum 7 BP per UPS); __ Battery Packs provide(s) __ minutes runtime @ __KVA load. Tower; UL/FCC/RoHS Approved; TAA Compliant; 3-Year Battery Warranty (USA and Canada only); 7.4"W x 16.5"D x 12.5"H, 82 lbs