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Unread 11-20-2008, 09:44 PM   #21
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Default Re: Refurbished golf cart batteries?

From the Trojan Battery site.

Equalizing (Flooded batteries only)




Equalizing is an overcharge performed on flooded lead acid batteries after they have been fully charged. It reverses the buildup of negative chemical effects like stratification, a condition where acid concentration is greater at the bottom of the battery than at the top. Equalizing also helps to remove sulfate crystals that might have built up on the plates. If left unchecked, this condition, called sulfation, will reduce the overall capacity of the battery.

Many experts recommend that batteries be equalized periodically, ranging anywhere from once a month to once or twice per year. However, Trojan only recommends equalizing when low or wide ranging specific gravity (+/- .015) are detected after fully charging a battery.

Step by Step Equalizing:

1. Verify the battery(s) are flooded type.

2. Remove all loads from the batteries.

3. Connect battery charger.

4. Set charger for the equalizing voltage (See Table 2 in the Charging section).

5. Start charging batteries.

6. Batteries will begin gassing and bubbling vigorously.

7. Take specific gravity readings every hour.

8. Equalization is complete when specific gravity values no longer rise during the gassing stage.

NOTE: Many chargers do not have an equalization setting so this procedure can't be carried out.


Table 2 !!!
Charging

Charging batteries properly requires administering the right amount of current at the right voltage. Most charging equipment automatically regulates these values. Some chargers allow the user to set these values. Both automatic and manual equipment can present difficulties in charging. Tables 2 & 3 list most of the necessary voltage settings one might need to program a charger. In either case the original instructions for your charging equipment should also be referenced for proper charging. Here is list of helpful items to remember when charging.

1. Become familiar with and follow the instructions issued by the charger manufacturer.

2. Batteries should be charged after each period of use.

3. Lead acid batteries do not develop a memory and need not be fully discharged before recharging.

4. Charge only in well-ventilated area. Keep sparks or flames away from a charging battery.

5. Verify charger voltage settings are correct (Table 2).

6. Correct the charging voltage to compensate for temperatures above and below 80o F. (Add .028 volt per cell for every 10o below 80o F and subtract .028 volt per cell for every 10o above 80o F)

Table 2. Charger Voltage Settings for Flooded Batteries

System Voltage
Charger Voltage Setting 6V 12V 24V 36V 48V
Daily Charge 7.4 14.8 29.6 44.4 59.2
Float 6.6 13.2 26.4 39.6 52.8
Equalize 7.8 15.5 31.0 46.5 62.0

Table 3. Charger Voltage Settings for VRLA Batteries


Charger Voltage Setting System Voltage
12V 24V 36V 48V
Daily Charge 13.8 - 14.1 27.6 - 28.2 41.4 - 42.3 55.2 - 56.4
Float 13.5 26.4 39.6 52.8

7. Check water level (see the Watering section).

8. Tighten all vent caps before charging.

9. Prevent overcharging the batteries. Overcharging causes excessive gassing (water breakdown), heat buildup, and battery aging.

10. Prevent undercharging the batteries. Undercharging causes stratification.

11. Do not charge a frozen battery.

12. Avoid charging at temperatures above 120o F.


Additional VRLA Charging Instructions:

1. Become familiar with and follow the instructions issued by the charger manufacturer.

2. Verify charger has necessary VRLA setting.

3. Set charger to VRLA voltage settings (Table 3).

4. Do not overcharge VRLA batteries. Overcharging will dry out the electrolyte and damage battery.
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Unread 01-26-2018, 12:17 PM   #22
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Join Date: Jul 2011
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Default Re: Refurbished golf cart batteries?

Quote:
Originally Posted by roady89 View Post
Epsom Salt's chemical name is Magnesium Sulfate. What you are really doing is desulphating the lead plates. (remove the built up crud to expose fresh lead) I would do this....but only as a last resort before buying new batteries. If your golf car batteries are toast anyways what can it hurt.

Do not attempt to put Epsom Salt directly into your battery because it will not dissolve into the battery acid, Epsom Salt will only dissolve in water.

Got a bad set of batteries? Don't want to spend the cash on a new set? Just need to buy some time so you can save the cash? Then keep reading on how they do it. It doesn't work all the time, it depends on the condition of the batteries.


ALWAYS WEAR SAFETY GOGGLES AND GLOVES WHEN WORKING WITH ACIDS!

1. SAFETY CLASSES AND GLOVES!
2. Epsom Salt
3. Distilled water
4. Turkey baster
5. Cooking thermometer (optional)
6. 1 quart pot (optional)
7. Stove (optional)

***The first part doesn't HAVE to be done. It will still work, it just works better when the solution is warmed.

* With the distilled water in the 1 quart pot, turn the stove on and bring the water temp up to about 150 degrees. DO NOT BOIL! If you don't have a thermometer just bring the temp up to "Just before a boil".

* Dissolve 10 tablespoons of Epsom Salt into the hot water. (again, doesn't have to be hot but it doesn't work as well.)

* Now simply pour the solution into your batteries.

(If the battery is too full you will have to remove some electrolyte with a turkey baster so you can replace it with the Epsom salt-distilled water solution.)


If you think something needs to be added please let me know.

DISCLAIMER: The information in this post is for informational purposes ONLY. Desulfating your batteries, placing Epsom salt or any form of it in your battery, adding distilled water in your battery is done on your own free will and at your own risk and responsibility. If you get hurt or damage your golf car batteries, anyone Else's batteries or any other battery it is your own fault. It is not anyone or anything Else's fault.
how much solution should i take out of the battery in order to replace it with the new solution?
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Unread 01-26-2018, 12:18 PM   #23
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Default Re: Refurbished golf cart batteries?

how much solution should i take out of the battery in order to replace it with the new solution?
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Unread 01-29-2018, 06:47 PM   #24
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Default Re: Refurbished golf cart batteries?

can you do this on batteries that are not dead but don't last long or is this only for dead batteries.
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