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> Optima Battery Failure Characteristics, Engine Turns over slower and slower
Spoke
post Jan 21 2008, 11:01 AM
Post #1


Jerry
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I have a red top Optima battery in my 74 and over the last few months, the engine has been turning over slower and slower. What are the characteristics of the Optima when it is going bad?

Lead acid batteries usually just dump and won't start the car.

I haven't checked the voltage at rest or while the engine is running to see if it's the battery or my charging system. I guess that will be tonight's activity.

Can I use an external charger to try to put a full charge on the battery?

Thanks,
Spoke
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Posts in this topic
Spoke   Optima Battery Failure Characteristics   Jan 21 2008, 11:01 AM
Rusty   Yes, you can use a 2 amp trickle charger on an Opt...   Jan 21 2008, 11:10 AM
Dr. Roger   I'm sure you've cleaned the battery termin...   Jan 21 2008, 12:31 PM
ConeDodger   I had an odd problem. My silver car was overchargi...   Jan 21 2008, 12:38 PM
Rusty   A load test is a good idea. I'd charge it up,...   Jan 21 2008, 12:58 PM
jim_hoyland   I have read that the red tops require a different ...   Jan 21 2008, 05:16 PM
Andyrew   I had my red top die, charged it up with my normal...   Jan 21 2008, 07:59 PM
banger   You just have to be careful about overcharging a s...   Jan 21 2008, 08:31 PM
Spoke   I have an SC34U Red Top Optima. From Batteries Ar...   Jan 22 2008, 09:06 PM
Spoke   I measured the resting battery voltage to be 12.28...   Jan 22 2008, 11:42 PM
banger   With a resting voltage of 12.28v, this indicates r...   Jan 23 2008, 01:28 AM
banger   Also forgot to mention that with the charger on, i...   Jan 23 2008, 01:30 AM
banger   Here is a quote from battery university regarding ...   Jan 23 2008, 01:39 AM
Spoke   Did some measurements today with the engine runnin...   Jan 26 2008, 11:54 AM
banger   I believe that 13.8 is usually wht most regulators...   Jan 26 2008, 08:20 PM
tommy914   This is the info from theOptima Battery web site...   Jan 26 2008, 09:56 PM
Dr. Roger   Optima's website also said not fully charging ...   Jan 27 2008, 04:57 AM
orthobiz   When I bought my fan-inflated storage bubble, I bo...   Jan 27 2008, 11:45 AM
Chevota79   I have had red tops in my four wheel drive and hav...   Jan 27 2008, 11:51 AM
SGB   So I thought my charger was messed up since it cyc...   Jan 27 2008, 11:59 AM


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