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Unread 03-27-2011, 05:29 PM   #31
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Default Re: CART NOT MOVING AT ALL.

Back to my cart problems,
When I charge my batteries with the 36V charger, some batteries start to boil or bubble inside. Why is this?
Thx
michael
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Unread 03-27-2011, 05:52 PM   #32
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Default Re: CART NOT MOVING AT ALL.

It's normal , there is a technical term for it ( %^&*() ) can't think of it right now.
The bubbles emit a noxious gas so do not charge in basement or small tight spaces without ventilation.
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Unread 03-27-2011, 08:01 PM   #33
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Default Re: CART NOT MOVING AT ALL.

Batteries Boiling - Do you think I should remove the caps?
Also, you believe I should keep charging them multi times?

See my post to understand my problem, Thx
Michael
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Unread 03-27-2011, 08:26 PM   #34
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Default Re: CART NOT MOVING AT ALL.

desulfating or something like that.........i would leave the caps on cause the bubbling is normal.............................
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Unread 03-27-2011, 10:30 PM   #35
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Default Re: CART NOT MOVING AT ALL.

And the caps are vented and the batteries are not technically 'boiling' ....
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Unread 03-28-2011, 06:37 AM   #36
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Default Re: CART NOT MOVING AT ALL.

Scotty,
Then if mine are boiling, whats your thought?

Thx
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Unread 03-28-2011, 07:16 AM   #37
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Default Re: CART NOT MOVING AT ALL.

All batteries GAS when charged. The gas is hydrogen and is very explosive.
There is lots of info available on the internet about battery use and care.

I recommend hours of reading at http://www.batterystuff.com/tutorial_battery.html

9. Battery Charging - Remember you must put back the energy you use immediately. If you don't the battery sulfates and that affects performance and longevity. (edit) Batteries like to be charged in a certain way, especially when they have been deeply discharged. This type of charging is called 3 step regulated charging. Please note that only special SMART CHARGERS using computer technology can perform 3 step charging techniques. You don't find these types of chargers in parts stores and Wal-Marts. The first step is bulk charging where up to 80% of the battery energy capacity is replaced by the charger at the maximum voltage and current amp rating of the charger. When the battery voltage reaches 14.4 volts this begins the absorption charge step. This is where the voltage is held at a constant 14.4 volts and the current (amps) declines until the battery is 98% charged. Next comes the Float Step. This is a regulated voltage of not more than 13.4 volts and usually less than 1 amp of current. This in time will bring the battery to 100% charged or close to it. The float charge will not boil or heat batteries but will maintain the batteries at 100% readiness and prevent cycling during long term inactivity. Some Gel Cell and AGM batteries may require special settings or chargers.

Batteries that tend to gas excessively are often old or deeply discharged. Some gassing is normal.

If a golf cart battery is left discharged for long period of time, dendrite shorts between the plates can occur when the battery is recharged. The low resistance bridge in the shorted cell will heat up and boil the electrolyte out of the cell causing a high volumes of hydrogen and oxygen. That is why proper venting and ventilation is so important when recharging batteries.

A battery charger reverses the current flow, providing that the charger has a greater voltage than the battery. The charger creates an excess of electrons at the negative plates, and the positive hydrogen ions are attracted to them. The hydrogen reacts with the lead sulfate to form sulfuric acid and lead, and when most of the sulfate is gone, hydrogen rises from the negative plates. The oxygen in the water reacts with the lead sulfate on the positive plates to turn them once again into lead dioxide, and oxygen bubbles rise from the positive plates when the reaction is almost complete.
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Unread 03-28-2011, 12:11 PM   #38
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Default Re: CART NOT MOVING AT ALL.

Now I'm trying a 12 volt charge on two batteries at a time.
I was told this will bring them to a charge enought for me to tell if they need replacing or not.
Since my cart is a simple no controller only coils type, I'm thinking it's battery replacement time.
Will know in 24hrs.
Any input??
Thx
Michael
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Unread 03-28-2011, 01:46 PM   #39
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Default Re: CART NOT MOVING AT ALL.

This thing has gone on long enough .
Your original post says batteries are 37+ volts that's enough to move the cart.
If coils are hot at half throttle (thats normal) these things were made to run wide open.
If U are charging with a 36Volt charger and batteries are bubbling then moving them to a 12 Volt charger is doing nothing to fix a problem.
Connect all batteries back up , put on charger "." , leave on charger until it shuts off.
Wait 8-12 hours and post battery results , each battery and entire pack .
Then we can move on and fix this

my 02 cent worth.
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Unread 03-28-2011, 02:11 PM   #40
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Default Re: CART NOT MOVING AT ALL.

I thought that two pages ago...............
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