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Old 04-02-2013, 07:18 AM   #11
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Location: San Jacinto, Calif
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I plugged my tow vehicle into the trailer without the battery in it and everything worked fine, so my tow vehicle is putting out power, I installed the battery after a 2 day slow charge at 2 amps, the battery indicator in the trailer registered full, I unhooked the battery cable and will check in a couple days to see if it will hold a charge, If not I guess I will need a new battery, Thanks everyone for the suggestions, I will look into a battery disconnect anyway.


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Old 04-02-2013, 07:41 AM   #12
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Location: Saskatoon Sask Canada
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Originally Posted by joe in calif View Post
. I have had the battery on a trickle charger for a day and used a hydrometer on it and only 1 ball out of 4 floats, so I guess the battery is bad.
Thanks again for the help, I appreciate it
A trickle charger will not recharge a dead battery.. they are for maintaining your battery...

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Old 04-02-2013, 09:05 AM   #13
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I have only recovered a couple of times in my lifetime bringing back a dead battery to life. This is was done with a low level long term charge like the trickle chargers produces. Then if I see any possible life coming back then I start increasing the charge voltage to draw more amps in an effort to burn off the core build-up. I am guessing not many batteries will recover once this happens. They are toast...

If I would hit a shorted out battery with a bunch of voltage at once the battery would get extremely hot and might even blow-up on you. I would think coming up as slow as you can would be the best method to try to recover a bad battery.

I am old enough to remember the battery charging tactics in the early 50s where the big thing was a ONE HOUR charge using about 25-50 VOLTS DC rated at over 100AMPs. Those batteries in those days almost looked cherry red as hot as they got. I saw one blowup at a gas station once and the battery top blew up over the garage. Not a pretty scene... That was the designated way to charge batteries back then.

Last spring I lost one of my 85AH standard issue Interstate Deep Cycle batteries. I had just picked up one of the good Black and Decker VEC1093DBD smart mode battery chargers and I tried and tried to recover the Interstate battery over a weeks time. At one point I thought I had it trying to recover but to no avail. It would never get higher than about 5.5VDC state of charge. I had good bubbling of fluids in all cores cap except one. I suspect that was the shorted out core. I even tried the battery tilt method as well trying to burn off the particles.

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