Re: Battery

Posted by El Toro on January 03, 2005 at 05:00:22 from (170.224.224.122):

In Reply to: Re: Battery posted by NEsota on January 02, 2005 at 19:39:29:

We tested a lot of military vehicles that had those sealed batteries in them. Never could get them to hold a charge in a cold room at -25 degrees. You could charge them forever. We switched to the 6TN 12 volt military battery, it
was like comparing those sealed batteries to the
6TN as like using pen lite batteries.
You can not check the specific gravity in those sealed batteries. You have to go by that stupid light. We alway measured the specific gravity in each cell, that's the best way to tell what the condition of a battery is. Most people can not
sit around waiting 2 or 3 days for a battery to
charge. When we made start at -25 we would pull
the batteries and install another set of fully charged batteries since the they had be cold soak for 24 hours prior to next starting attempt.

The batteries we removed we would let them thaw for 12 hours then charge for 24 hours.

Most places now load test a battery and they can tell if the battery is defective. I always check each cell before I return a battery to see if one cell is a lot lower. That's the best way to determine the condition of a battery. I have worked around them for 43 years.
Hal

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