APC Replacement Battery Cartridge #43, Sealed Lead Acid (VRLA), 41.9 lbs (19 kg), 8.29" (210.6 mm), 2.99" (76 mm), 20.9" (530.3 mm), 8.5 x 21 x 3" (215.9 x 533.4 x 76.2 mm)
Data sheet