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  #121  
Old 04-15-2013, 07:27 PM
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Look at the Sears Die Hard PLATINUM pictures and then look at the Odyssey. They are obviously made in the same plant with different colors. Same battery.

Not sure on the 25? My guess is nearly the same as a 34? You'd have to look at the dimensions on-line and the CCAs.
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  #122  
Old 04-15-2013, 10:20 PM
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Ack! Why are Odyssey batteries THAT expensive??? Holy smokes. I thought Optimas were expensive at $150 plus, but $500 bones for a battery?

At that point, I would change to Lion.
http://www.jegs.com/p//Lithium-Pros-...70167/10002/-1

Less weight, better charging, little dangerous, but meh....
Probably only good for a second battery, but LOVE the weights on those. Wow....3 pounds!
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  #123  
Old 04-16-2013, 09:17 AM
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The odyssey is $250. The Diehard Platinum is $220. The Odyssey has 880 cca, Diehard 850. Odyssey makes a group 25, diehard does not, I'd have to use a spacer to fit a 34. The group 25 weighs less too.

Also, I think $250 is fair for the performance I expect. The Optimas were supreme 12 years ago. They still cost the same as 12 years ago however. One way to hide inflation is to decrease quality. If their quality were the same as when they came out, I would expect them to be about $250 now too.
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  #124  
Old 04-17-2013, 12:23 PM
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Unless production costs and materials savings make up the difference. Still wondering about CURRENT and ACTUAL experience reports on Optimas. Understandable they went through a teething period when production moved.

Just needing actual current experience data instead of dated and conjectured information.

The O'Reilly's up here reports zero warranty claims on yellowtop Optimas currently, and they are on sale through the end of the month. Other batteries do not fare as well.
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  #125  
Old 04-17-2013, 01:24 PM
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Bill, my current Red Top in the 40 that I won at CM a few years ago seems to be doing ok...Granted, I've been keeping it on the charger now vs. just letting it sit after the bad luck I had with the 2 previous Red Tops...So, either quality has improved or how I treat them improved - or both
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  #126  
Old 06-25-2013, 02:17 PM
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Some experience to add to this thread:

3-4 months ago I* installed a dual battery system (Columbia Overland tray and National Luna kit) into my 05 V6 Tacoma. I put in 2 group 35 Autozone Duralast Gold Batteries. I had a good reason for using 2 starter batteries rather than 1 starter and 1 deep cycle... But for the life of me, I can't remember what that reason was.

So, anyway, on Saturday I went to start the truck and found the starter battery to be 100% discharged. I put it on a trickle charger for the whole day and it still wouldn't hold a charge. Drove to Autozone this AM (the jump-start feature on the dual battery system works great!) and they tested the starter battery to find that it was, indeed, quite dead.

I find it rather disconcerting that this happened. The battery was practically brand new and had never been abused in anyway. It has never been below 12 volts in it's entire life as far as I know.

At any rate, I got the full refund on it... And applied it to an upgrade to an Optima Yellow Top. So, I now have my old auxillary battery (Duralast Gold) in the starting battery position and an Optima Yellow top in the aux battery position.

I'll update in a few months or years when I know how that system works out. Hopefully it was just a fluke bad battery. If the 2nd Duralast Gold fails, then I'll swear off them for life.

*I installed the dual battery system... With a lot of help from Marco.
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  #127  
Old 06-25-2013, 07:11 PM
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i have issues with my batteries (blue tops) lasting more than a couple days, ever since adding my national luna setup. i'm thinking that might be the issue as the batteries tested as good.
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  #128  
Old 06-25-2013, 07:35 PM
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Put a meter between the neg terminal and ground and see if there is a draw. A Bad ground or something always on or a short might cause that. You would see that if there is a current draw when it should be off
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  #129  
Old 06-26-2013, 10:12 AM
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Just another data point. I've had one of my group 35 DHP's for about 2.5 years now. Still going strong. Recently installed the blue sea dual battery setup and got another DHP. I inadvertently deeply discharged the first one by leaving the door open for a few weeks a year or so back. It was quite dead at that point. (changed to LED's after that). The old one still holds about 12.65 volts or so. The new one about 12.75 or 12.8

So overall very happy with them considering the truck sits for sometimes weeks at a time and the bonehead discharge maneuver I pulled
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  #130  
Old 06-26-2013, 10:59 AM
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I don't think it's a problem w/ the National Luna system. The starter battery that failed had never been below 12 volts when I'd go to start it, and it regularly sits for a week or more. It was usually at about 12.7 when I'd get in the truck... Except for last Friday when it was completely discharged.
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