Deep cycle battery's left over time produce sulphite crystal. This crystal prevents (insulates) the plates from the battery acid, which causes short discharge and rapid charging. Thus making battery useless
I have discovered this recipe which to my surprise actually brought the battery back to near factory spec. I used a load tester to verify my reuslts
initially 10.5 volts no load, and under load 2 volts
after Empsom salt 13.9 and under load maintained 12.9 for 15 sec (max time on load tester)
recipe is here good luck
1.
o 1
Test the battery to see if it is likely to respond to reconditioning; it needs to register 12 volts on a voltmeter. If it’s between 10 and 12 volts, you may be able to restore the battery to full function, but if it tests at less than 10 volts, you’re probably wasting your time.
o 2
Heat a half quart of distilled water to 150 degrees F, and dissolve 7 or 8 oz. of Epsom salts in the water.
o 3
Remove the battery cell caps. If you have a sealed battery, find the “shadow plugs” that cover openings to the battery cells--you’ll need to drill through these.
o 4
Drain any fluid out of the battery and use a plastic funnel to pour enough of the Epsom salt solution in to fill each cell of the battery properly.
o 5
Insert plastic plugs in the drill holes or replace the battery caps and shake the battery to make sure the Epsom salts solution is well distributed.
o 6
Recharge the battery on a slow charge for 24 hours and then re-install it in your car.
Read more: How to Recondition a Car Battery at Home | eHow.com http://www.ehow.com/how_4855050_recondition-car-battery-home.html#ixzz1wjc0ajMx
i used 80 oz by weight Epsom to 1 US gallon of deionized water
the results were very good
just a thought
I have discovered this recipe which to my surprise actually brought the battery back to near factory spec. I used a load tester to verify my reuslts
initially 10.5 volts no load, and under load 2 volts
after Empsom salt 13.9 and under load maintained 12.9 for 15 sec (max time on load tester)
recipe is here good luck
1.
o 1
Test the battery to see if it is likely to respond to reconditioning; it needs to register 12 volts on a voltmeter. If it’s between 10 and 12 volts, you may be able to restore the battery to full function, but if it tests at less than 10 volts, you’re probably wasting your time.
o 2
Heat a half quart of distilled water to 150 degrees F, and dissolve 7 or 8 oz. of Epsom salts in the water.
o 3
Remove the battery cell caps. If you have a sealed battery, find the “shadow plugs” that cover openings to the battery cells--you’ll need to drill through these.
o 4
Drain any fluid out of the battery and use a plastic funnel to pour enough of the Epsom salt solution in to fill each cell of the battery properly.
o 5
Insert plastic plugs in the drill holes or replace the battery caps and shake the battery to make sure the Epsom salts solution is well distributed.
o 6
Recharge the battery on a slow charge for 24 hours and then re-install it in your car.
Read more: How to Recondition a Car Battery at Home | eHow.com http://www.ehow.com/how_4855050_recondition-car-battery-home.html#ixzz1wjc0ajMx
i used 80 oz by weight Epsom to 1 US gallon of deionized water
the results were very good
just a thought
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