... UL,ROHS Approved 2.High thermal stability&intrinsic safety 3.Long cycle life 24V 20Ah lithium iron phosphate battery for UPS power ... supply1.CE,UL,ROHS approved;2.High thermal stability&intrinsic safety;3 ... mainly used for large EV,light EV,boatsd,planes,small medical instruments and etc . 24V 20Ah lithium iron phosphate battery for UPS power ...