The sip chargestar t45 performs very well primarily through its dual voltage capability crocodile clips heavy duty charge leads and reverse polarity protection are standard key features230v 13amp supply30ah minimum battery capacity45amp 12v24v max charging current12v 24v charging voltages2 charge rate settings specifications supply230v 13amp charging voltages12v 24v charge rate settings2 settings max current output 12v45amp max current output 24v45amp min battery capacity 12v30ah min battery cap