is the battery toast? - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
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post #1 of 6 (permalink) Old Jun 4th, 03, 02:17 PM Thread Starter
 
Join Date: Apr 2002
Location: Huntington Beach CA
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Ok so I've been havin problems starting the car, and I finally got hold of a voltmeter to check a few thigs out.

I didnt suspect the battery cuz its a fairly new red-top Optima. However, I decided to check it just cuz- it read 8.8 volts across the posts. Eek!

So I hooked a big-bad 50amp charger to it that my mechanic said would do the trick in about 30 minutes. Well after an HOUR it only read 11.5 volts...

Is the battery toast?
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post #2 of 6 (permalink) Old Jun 4th, 03, 03:03 PM
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Join Date: Mar 2002
Location: Austin, TX, USA
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Try putting it on a low amperage charger over night. Also, when you hook up the big bad charger, see if the terminal voltage exceeds 15-16 volts. The battery should read about 12.5 when fully charged (off charger). A charging battery should read about 14.

-dnult

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post #3 of 6 (permalink) Old Jun 4th, 03, 03:30 PM Thread Starter
 
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rodger that will do...

reads at 14.7 volts on the charger, so thats kosher I guess.


is 2amps overnite low enough?
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post #4 of 6 (permalink) Old Jun 4th, 03, 04:16 PM
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Quote:
Originally posted by jonwell:
rodger that will do...

reads at 14.7 volts on the charger, so thats kosher I guess.


is 2amps overnite low enough?
1-2 amps overnight {8-12 hours} should be enough to recharge it.!

I used to work at Sears auto center,we tried to recharge batteries at aprox .75 to 1.5 amps per hour,as a slow charge is a lot less harmful to the plates in a battery,and if the cells are able to desulfate,this is the best way to do so,and it is a longer lasting charge,low and slow,kinda like cooking in a crock pot,LOL.

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post #5 of 6 (permalink) Old Jun 4th, 03, 04:18 PM Thread Starter
 
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haha, gotcha, thanks man.
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post #6 of 6 (permalink) Old Jun 5th, 03, 04:53 PM Thread Starter
 
Join Date: Apr 2002
Location: Huntington Beach CA
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well nothin worked, so I took the old battery back for its FREE replacement, hehe.

Seems that the battery was toast after all, I slapped the new one in and it fired right up! I'm happy again! Thanks for the help.

Oh lol the guys at the parts store were amazed that I managed to kill a red top optima in 18 months... I just said "If there's a way something can be destroyed, I will do it."
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