Ranger on-board marine charger, 3 bank, 10amp per bank. Just removed from my boat today, charged my battery's with it before removing them and switching everything over to Lithium. It is older but works as it should.. one lead coming of a bank had to be cut but there is still 2 feet of wire to add on. It was ran around the back transom for 3rd battery and I couldn't get to all the zip ties to pull thru. 14.5" long, 6.5" tall and 5.5" depth.