The Tripplite 1500LCDT has a 1500VA (900W) output rating. It is 120V @
12A. I guess they round 1440 up to 1500, which seems like bad math, but
anyway...
Inside there are two 12V SLA batteries. I've replaced these things in
the past, but today I was looking at the wire, and noticed that it is 12AWG.
As far as I know, 12AWG wire is good for 20-30Amp depending on
temperature, and two 12v batteries in series is 24V.
24V*20A is 480VA.
24V*30A is 720VA.
480 to 720 minus inverter losses are much less than 1500, so what gives?
Is the 12AWG wire OK because its length is short? Or do I not understand
the UPS's power rating?
--
Anthony Carrico
