... . Best after-service AC/AC automic power supply ModelSpecCV(Limited)CCTransfer/Shut off point currentWeightDimentionsOutput power(W)Lead-acidLi MnLi Fe(Limited ... voltage and short-circuit, safe and reliable4transfer efficiency 90%~98%,power factor≥0.9,high efficiency5LED indicator,metal case,nice and sturdy ... - CV- minor CC- high CV-floating charge. AC/AC automic power supply