optima batteries -- chargeable?

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Dec 14, 2008
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Hey all - quick question on optima batteries and if they can be recharged....

I have a dual battery setup with a hellroaring battery isolator... both are red tops, which after doing some reading may not be the best solution, but that's how it came -- thinking maybe a deep cycle would be better for one of the two if I don't change the setup, overall. When I first got the cruiser - the batteries would always die within a day or two (still trying to chase down a bad ground, i think)... I had an older charger - maybe mid 90s - that I would keep hooked up to 1 battery and the metal ground and that would keep at least 1 of the batteries strong enough so that I could start. But after an extended time without the charger running (I tripped a circuit while no longer living at the location the cruiser is at and so it went approx 1 month without any charging). So I hooked backed up to the charger and let it go for a couple of days, and tried both batteries separately, both through the isolator, etc -- but although they say charged -- never enough juice to turn the engine over. So I took them both to O'Reilly's and had them hook up to a charger/tester. The settings they used were for regular batteries, not AGM, but they said that didn't matter. One battery charged within 30 minutes -- and the other took an hour, but was still low. I hooked up the 1 'good' battery but still not enough to turn over the engine. Let them both run on a new trickle charger (that said it was good for AGM type batteries), but after a day or so they charger displays a generic 'error' -- safe to say these batteries are dead? Any ideas as to whether I can test myself if they are good? The one red top definitely gets warm on top compared to the other when I try to charge.....Thanks for taking the time to read and answer if anything.

I was thinking of trying #2 below - but have resisted purchasing any additional batteries.....

Optima Product Support : Tech Tips

Paul
 
I remember someone telling me that you have to put the charger on a regular battery and then run jumpers to the Optima in order to get a full charge. I haven't done this myself and I can't even remember who told me this, but it might be worth asking around about....
 
I have since replaced my Optimas on the 80, but I still run a red top on the 40. I've killed it a few times, forgetting to turn off the key when working on it. I've just jumped it to get the truck started and let the cruiser do the magic.

When the Optimas die, they die:meh:
 
I have since replaced my Optimas on the 80, but I still run a red top on the 40. I've killed it a few times, forgetting to turn off the key when working on it. I've just jumped it to get the truck started and let the cruiser do the magic.

When the Optimas die, they die:meh:

I had a red top in mine when I got it. Decided not to get another when it died. One day i'm going to get the die hard ones I want.
 
I've got a 34M Dire Hard Platimum for starting and a 31M Marine Platinum for "accessories: now:flipoff2:

Paul, where are you at? If you haven't figured it out in a week or two, I have a spare, fully functional red top that you can use if you want to try the second battery trick. All depends on where you are and how quick you need it
 
Thanks all - much appreciated on all replies - I was thinking the same, if the red tops are dead - I am not sure what I'll do - the battery tray seems to be custom to the red tops and cell shape......

As for me - the cruiser is presently near Hickory - and I'm closer to Lake Lure -- I don't think I'll be back in Hickory for at least 1+ month - but I appreciate the offer....

Paul
 
Hi Paul, I’m sorry to hear about the problems you’ve been having and I’d like to help. The parallel charging method you posted above is also explained in this video- http://www.youtube.com/watch?v=dIoaL3DWWEg

The low internal resistance of Optima batteries allows them to operate well beyond their rated specifications, which can result in deeply-discharged batteries. Many battery chargers will not recognize or charge any battery, if it has been discharged below 10.5 volts. The parallel charging technique can “fool” these chargers into charging deeply-discharged batteries. If you have any other questions, I’ll do my best to answer them.

Jim McIlvaine
eCare Manager, OPTIMA Batteries, Inc.
www.facebook.com/optimabatteries
 
That is good service to see someone from Optima post on here. I have had my Red top in my 80 series since 2003 and have had no problems! I love it!!

Tim
 
I've killed the red top in my "cruiser" many times since I bought it in 2002.. what's always worked for me was a low-amperage slow charge.. I have this ancient 2/6 amp charger that I use for this.. set it on 2 amps, come back the next day.

I've heard the newer ones aren't as good as the older ones, but YMMV. :)
 
I've killed the red top in my "cruiser" many times since I bought it in 2002.. what's always worked for me was a low-amperage slow charge.. I have this ancient 2/6 amp charger that I use for this.. set it on 2 amps, come back the next day.

I've heard the newer ones aren't as good as the older ones, but YMMV. :)

yeah - that's what I have, also, and old 2/6 charger and the 2 amp had worked, then I left for a month..... and now the present condition of not being able to charge -- I'm going to try the regular battery charge to the red top......thx :)
 
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