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Unread 09-30-2008, 08:53 PM   #1
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Default 36 volt system battery question

I purchased a 93 ez-go 36 volt cart to fix up and have heard allot about putting somthing in the batteries to rejuvinate them until i can purchase new ones can somone tell me how to do this. I understand that that this is relitivaly cheap.
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Unread 09-30-2008, 09:42 PM   #2
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Default Re: 36 volt system battery question

How old are they? If you can hit them with a car charger 2 at a time with 60 amps and see what they will do. I brought a set back to life with this method just last week. These batteries were a year of sitting dead and they are 2 years old. So far they are holding at 42 volts.
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Unread 09-30-2008, 10:07 PM   #3
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Default Re: 36 volt system battery question

the batteries are 4 years old the cart runs ok and has new 4 gage cabes that i just put on , i took the motor apart and found that the brushes need to be replaced and i am looking to find a set at a reasonable price still looking. any help would be appritiated. I just dont think the batteries are what they should be this is why i am considering doing the rejuvination thing. If you say it works i guess i will try it tomorrow hope it works for me also. thank you for your imput.
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Unread 09-30-2008, 10:17 PM   #4
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Default Re: 36 volt system battery question

I am not doubting Andy's method and results for that situation.
But with regards to the whole battery rejuvenation thing, if it worked well, everyone would be doing it to everything. Results are as varied as the many methods sold. Basically nothing brings a used up battery back to life. Once you understand that the process by which the batteries make electricity erodes the lead plates until they have no more lead to give....then you see why this is alot of snake oil for the most part....
Do a site search on this topic for more discussions on this topic......
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Unread 09-30-2008, 10:24 PM   #5
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Default Re: 36 volt system battery question

scottyb,
I agree absalutley. That's why I asked how old they were. I didn't say I rejuvinated them with some thing. I just hooked a 60 amp charger to new batteries basicly and they came back up. They sat for a year uncharged so before I just give them up I tried it. What I got is a set of new used batteries that are holding at 42 volts right now. It will be awhile before I know for sure if it did any good since the cart is in a full make over.
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Unread 09-30-2008, 10:30 PM   #6
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Default Re: 36 volt system battery question

Yep! I never doubt your experiences I have brought a dying battery back to work with similar methods but, when they are done ....they are dead!
It will be interesting to see what kind of service you get from them and for how long...
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Unread 09-30-2008, 11:18 PM   #7
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Default Re: 36 volt system battery question

Welcome to the forum clutch...................
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Unread 10-01-2008, 08:04 AM   #8
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Default Re: 36 volt system battery question

It is just chemistry. Plain and simple.
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Unread 10-04-2008, 09:17 PM   #9
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Default Re: 36 volt system battery question

maybe this will help, i tried it on some and worked on some, not on others!!!

ALWAYS WEAR SAFETY GOGGLES AND GLOVES WHEN
WORKING WITH BATTERY ACIDS!


Materials (per battery):

A. Magnesium Sulfate (EPSOM SALT), ten heaping tablespoons

B. Distilled Water, one quart. MUST BE DISTILLED, not tap water.


Note: Distilled water is usually sold in gallon containers, but only one quart
per battery is required.

These materials are available from most any drug store.

Procedure:

Note: This procedure works best if battery charge is depleted. ie; it works
best on a dead battery, not a charged battery.

LEAD ACID BATTERY REPAIR
C. Drain battery enough to be able to add one quart of fluid. Draining
battery to where the internal plates are just exposed would be a sufficient
amount. If you drain too much, you can always top off with the distilled
water. If you would rather not go to the trouble of removing battery from
vehicle, most auto parts stores have a battery filler tool that looks like this:

It works by compressing the bulb, inserting in the battery fill hole, and
releasing the bulb. Battery fluid can then be placed in discard container.
This is a lot easier than disconnecting and removing battery.

D. Heat the distilled water to about 150 degrees (very hot but not boiling).
The temperature doesn't need to be exact.


E. Mix 10 heaping table spoons full of Epsom Salt into the water and stir
until it is dissolved. It should take less than 1 minute to dissolve. It is very
important to dissolve Epsom salt entirely.

F. Pour solution into your battery where you would normally add water to
maintain the acid levels. DO NOT attempt to put Epsom Salt directly into
your battery because it will not dissolve in the battery acid.

G. Replace caps and agitate battery to the extent possible. It is difficult to
thoroughly mix the Epsom salt solution throughout battery because of the
battery plates and baffles. Probably the best mixing method is to simply
drive the vehicle (if the battery works at all).

H. Charge over night.

I. It is also important to ensure battery terminals and cable connections are
clean, free of corrosion, and shiny. Battery protector spray is available at
most auto parts stores, and will keep battery connections clean and
corrosion free longer. Battery connections should be kept tight;
recommend checking for loose connections quarterly.

J. Battery performance should be better after one day. However, the full
extent of how well the battery responds to this treatment can best be
judged after ten days. Epsom salts will continue working to remove built up
sulfates from the battery plates. Some batteries will improve as much as
they are going to in the first day, but typically batteries continue to improve
over the next week to ten days. It depends on battery age and level of
sulfate build up.

Maintenance Free Batteries

Most lead acid batteries have removable caps to maintain the acid levels
easily, but maintenance free (sometimes called low maintenance) batteries
necessitate slightly more effort to recondition. A maintenance free battery
has the top sealed closed to avoid evaporation, but this feature needs a
few extra minutes to recondition. To recondition maintenance free
batteries, you will have to look for the "shadow" marks on the top plastic
that will indicate the holes into the cells. Drill 1/2 inch holes in the plastic to
obtain access to the cells, remove one quart of battery acid, then pour in
the distilled water and epsom salt solution. When complete, these holes
can be plugged with plastic hole caps that can be found at most hardware
stores. This procedure works most of the time but not all the time. It
depends on how bad the cells are decayed. This process can also only be
done 2 to 3 times before the cells are worn out.
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Unread 10-06-2008, 07:54 AM   #10
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Default Re: 36 volt system battery question

thank you this is the method that i tryed afew days ago and i will tell you this it made a very niticable differance in 4 of the batteries but there are 2 batteries that need to be replaced because each one of them has one ead cell in it. , but the other 4 have been holding a charge I,m going to purchase 2 new batteries tomorrow and install them and charge all with the cart charger this time and the check the voltage. I don't know how long this will work for the old batteries but hopfully it last until i can buy 4 more new ones. I just want to say thank you to everyone who replied to help me with this issue , you guys are very helpful and this forum is great .
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