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  #11  
Old 12-21-2020, 02:40 PM
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Originally Posted by CarlC View Post
One of the challenges of having a not-driven-often car and using a complete system disconnect switch is that the long and short fuel trims get deleted once power to the ECM is disconnected. Not a big deal, but it may mean the car is a bit "cranky" until 1-2 cold start and run cycles are complete.

I use a disconnect switch to disconnect the main power buss but have a simple 5A circuit breaker bypass in order to protect the whole system when in storage. A battery maintainer is easy enough to do.
Yes, Iím definitely going to hook a disconnect up.
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  #12  
Old 12-21-2020, 05:15 PM
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toss the red top, and change to yellow. Once a redtop discharges, its done. Doesn't solve your problem, but its the first thing I would do. I won't run redtops anymore
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  #13  
Old 12-21-2020, 05:44 PM
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I had this problem on my 1981 El Camino SS .The shop found a short under the drivers side power seat .I disconnected it and have had an issue since ,Maybe you have a similar problem .Good luck on your search.
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  #14  
Old 12-21-2020, 06:59 PM
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Dead/discharged not damaged. This is the 4th optima Iíve put into the car in 4 years.
So you are able to charge the battery after it is discharged?

Don
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  #15  
Old 12-21-2020, 07:01 PM
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Originally Posted by Musclerodz View Post
toss the red top, and change to yellow. Once a redtop discharges, its done. Doesn't solve your problem, but its the first thing I would do. I won't run redtops anymore
Even an Optima charger canít bring it back?

I run Odyssey and Iím able to bring them back with an Odyssey charger.

Don
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  #16  
Old 12-21-2020, 07:24 PM
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So you are able to charge the battery after it is discharged?

Don
No. When itís discharged, itís done.
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  #17  
Old 12-21-2020, 08:38 PM
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No. When itís discharged, itís done.
A conventional charger definitely cannot bring them back. A pulse charger can in many cases. I have done it myself. Again check out the R2 battery saver chargers and videos I posted. Not pushing them as a brand but the videos are loaded with good information on the technology.
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  #18  
Old 12-22-2020, 06:24 AM
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No. When itís discharged, itís done.
What charger are you using?

Don
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  #19  
Old 12-22-2020, 08:21 AM
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What charger are you using?

Don
Battery tender.
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  #20  
Old 12-22-2020, 08:23 AM
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Originally Posted by cjfirstgen View Post
A conventional charger definitely cannot bring them back. A pulse charger can in many cases. I have done it myself. Again check out the R2 battery saver chargers and videos I posted. Not pushing them as a brand but the videos are loaded with good information on the technology.
Thank you. Yes, there is some great info in these videos.
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