Hi, please help from Brasil, i am have UPS,very same this, Triad SMS 1200va in 220/110v, out 110v, Bat 36v. dont have datasheet or manual service, board Psdr-1050, my problems is charger, think irf620 mosfet is the charge, side have two resistors, one capacytor, bad very carbonized, dont identify resistor and capaciter especifications, measure de terminal batery bat+ Bat- multimeter, have 63v, think very high, i think god charge 41v+-. Sorry Bad english, Thanks.
