Additional battery module, rack format For Eaton 9SX 1500 VA rack UPS (Max. 4 can be connected) Additional runtimes: 500 watts: approx. + 60 min 800 watts: approx. + 40 min 1200 watts: approx. + 25 min . Width: 438 mm, Height: 87 mm – Depth: 438 mm Weight: 27.4 kg