product description : apc back-ups es 550va 230v output : power capacity : 330 watts / 550 va max configurable power : 330 watts / 550 va nominal output voltage : 230v input : nominal input voltage : 230v input frequency : 50/60 hz cord length : 1.83 meters battery type : maintenance-free sealed lead-acid battery with suspended electrolyte typical recharge time : 16 hour(s) surge energy rating : 310 joules dataline protection : rj-11 modem/fax/dsl protection (two wire single line),rj-45 modem/fax/dsl/10-100 base-t protection dimension (h x w x d) : 86 x 230 x 285 mm weight : 6.40 kg