Golf Cart 36v Maintainer

I use my golf cart as a tool :) Hauling stuff back and forth to boat dock :). Anyway, I just installed new deep cycle batteries. I don't use it for up to four months during the winter as I'm in the south. I'm not able to keep a charge on them during those months.

I'm looking for a maintainer during that period. I've looked at Schauer, Russo and Granite "save a battery" maintainers on the net. Priced at $75-100.

Can anyone recommend a maintainer/charger for my 36 volt system? I've used Deltran models for 6 & 12 volt with success but don't see that they offer a 36 volt model.

Thanks, Tom
 
hey Tom they do make a 36 v charger for golf carts that does the maintaining of batteries
not sure of the make
I added a link to a golf cart forum for you
there's a guy on there named Scotty who is the electric golf cart guru
if you ask over there you'll get a number of options
I know they are also sold on E bay as I've thought about getting one as well for the wife's cart
they run about 200 bucks IIRC
golf cart tip forum
 
6 years ago I purchased a 12 v batteryminder, #12248. It came with a 5 year warranty. It has extended the life of many batteries. Not cheap, but well worth it.

Batteryminder has two models on amazon. https://www.amazon.com/BatteryMINDer-Volt-OnBoard-Desulphator-Conditioner/dp/B002ZTYRO4?ie=UTF8&*Version*=1&*entries*=0

Again not cheap. If you put a lot of money in 6 golf cart batteries that's not cheap either.

Regardless of what maintainer you buy, make sure can desulfate.
geo
 
I have a 48 volt charger for my electric truck. In the summer it gets charged a couple of times a week. In the winter I hook it up once a month whether it needs it or not. I don't keep it plugged in as a maintainer. I put 2oz of hydrogen peroxide in each cell (8 Trojan T-105 6 volt) once a year as a de-sulfater. The original batteries lasted 10 years. I bought the charger on line for about $125. It is an Inter Actor. The picture of the batteries are spare 12 volt that came with the truck. I have 4 of them in the tool box on the back of the truck as a second bank. The charger works the same on those as it does on the 6 volt.
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Thanks for the replies.

So much to choose from as far as desulfators. There has to be a combo unit that will meet my needs for an over winter maintainer/desulfator. Thinking a 1-3 amp constant charge/float that would also drive the desulfator.
 
If you google the batteryminder, it does many things, charges, equalizes, desulfates then float charger. Here is what a 12 v batteryminder can do. They also have 36 and 48volt modesl. geo
12v model
 
Sorry, a lot of time I don't check back after I post. Just a utility vehicle around the house. Picking up sticks, tool cart etc. Today it is hauling my 20hp pressure washer around. My grandson absolutely has to go for a couple of rides when he is over. St. signs were a retirement present. We had to have 13 year old Sabrina put to sleep in 2012.
 
Sorry for your dog, tuff as it is. I lost my 14 year old Chab "Chow & Lab mix) two weeks ago. He lost a fight with a car. Don't know why he went into the road, NEVER before, at least I never caught him doing it.
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How pricey are the batteries?

I've had my 12v model 12348 for over 5 years. I feel it paid for itself in the first year. I don't buy 4-5 batteries a year. I have over 20 batteries too. I think in the 5 years I may have replaced 3 batteries. 2 batteries developed an open inside. 1 battery had a bad cell. My oldest battery is a 2007, have 3 of them. Unheard of before I got the batteryminder. I'll buy another one if this one dies.
geo
 
Really can't complain, I installed three Interstate Industrial 12 volt, SRM-29, 210 RS in July of 2009. They are now $149 bucks each.

I didn't see a need for six, six volt batteries, just using the old AMF Harley Davidson cart back and forth to boathouse. I,m not using it for 18 holes of golf.

With the old batteries, all would come up to a charge of 12.3 volts, but as soon as I put a load on the bank, one would drop to less than two volts, while the other two held just over 12 volts. Needless to say, it was a slow hog.

I'm using the old charger with the dial to set hours of charge. It starts out at 20+ amps and drops to 3 amps when batteries reach 12.5 volts.

I didn't use any kind of maintainer or float charger during the seven years of old battery use. The cart sits for four months in my garage during the winter, as I'm a wimp now, and head south for my winters.
 
If you want to be cheap, you could use a battery maintainer for each 12v battery. I wouldn't, but allowing a battery to self discharge over winter isn't good. However what would cause good batteries to self discharge?? Did your old batteries self discharge over the winter?
 
Geo-TH asked "Did your old batteries self discharge over the winter?"

Yes, I didn't measure each battery voltage this spring upon my return. I know, checking across the bank, the voltage was around 20-22 volts. Cart is stored in an unheated garage, which doesn't help.

I also have an six volt Interstate battery in my 48 Pontiac, installed new in 2009. I keep a Deltran maintainer/float charger on it when not in use. The old girl fired up this past Memorial Day for a parade, many stops and restarts without a problem.

Thanks for inputs, Tom
 

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