This unit is is the most for the money,you can spend more with out getting what this unit provides, Waterproof for any direction on board mount, three battery individual charging, no need for use of your battery switch,auto three stage charging program, able to charge the three types of batteries. Attach the charging leads to each battery and plug the unit in to your 110 ac in your boat, or extention to your dock side, or on trailer in your back yard. This is truly a set it and forget it system, just have to check your battery fluid once in a while, it took me longer to type this then install this unit. Research them all I did, you will not find better. I could go on about the unit but you'd think I was a salesman for them.
(2 of 3 people found this review helpful)