BatteryMINDer Model 1510: 12V-1.5 Amp Battery Charger Maintenance Charger/Desulfator Designed for Cars, Trucks, Motorcycles, ATV, Boat, RV, etc.

My third. All have been flawless. Works perfectly; lasts forever.

My tender stopped working after 9 months. Called and with out question it was replaced and shipped free to replace. I had to return the old unit and fill out a form but that was it. Wish everyone stood behind their products like this. New unit is working great.

I have several of these as well as several of the on-board model. These are pricey, no doubt, but they do an amazing job. They keep your batteries in good health and you just don't need to worry about them at all. No fuss, no worrying about it overcharging or starting fires or anything of the sort, just plug it in and forget about it.

I have a more expensive one from this company, but this seems to do the same for much lower cost. A reasonable cost for prolonging battery life.

I usually don’t review much products, but this one I have to. Been on the desulfating road for a long time, built my own kickback, voltage doubler and high powered desulfators. I also have others like wizbang, infinitum, pulsetech desulfaltors and Ctek and Enersys chargers.So here is the story. Got two 3 year old Group 31 starting batteries with 925CCA each. The was no sign of damage to the battery plates and the battery was still straight (no sign of a deformed case). Came out of an 18 wheeler that had a 3 battery setup. One was totally toast, the other two sat outside for the whole Canadian winter. So I took them home and checked SG on both batteries at no higher than 1150 SG. I’ve ran them in my high powered desulfator for a week each, but both batteries would not go to SG 1300 on all cells. Some cells seemed to be stuck at a certain SG level of 1250 and wouldn’t budge.So I bought this little Batteryminder 1510 and let it do it’s thing for another 12 to 14 days on each battery.Now these batteries measure SG 1300 on all cells and recovered to 900 CCA.Bang for the buck, you can’t go wrong with this thing. It is not the fastest charger or desulfator per se, but given enough time of being continuous connected to a battery for at least 2 weeks or better even longer, it will get the battery in very good shape, if the plates inside and the bus isn’t damaged.It will not fix a broken or damaged battery like lead shedding, broken bus, corroded or cracked plates, a buldge on the side etc. These aren’t good candidates to try to begin with and will never recover well.