CK5
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DEEP CYCLE BATTERY ??????

So far, every Odyssey I have run has done exceptionally except for one. I put one in my new tractor right after I got it, because I was already seeing some corrosion from the factory wet cell. It has done fine.
But, at the same time, I bought one for my truck. Money had gotten tight a year or so ago, and when my Optima died, I had had to replace it with a wally world special.
With a money infusion, I got the two Odysseys at the same time. The one in the truck started dying within the first year.
I took it back, and they replaced it no charge, no questions asked.
I had questions though. I know these guys really well, they have a dedicated battery shop and I have been doing business with them and doing some work for them for years.
I wanted to know if this was a common problem.
They said it was not. Out of a couple hundred batteries, maybe one or two had come back with the exact same symptoms. It acted like something had come disconnected inside.
So far, the replacement it doing great.
 
while recent Optima's have given themselves a bad rep, most Agm's that I see do well.. Odysey (the jury is still out) but my IS's and Lifelines are rock solid..
 
So the reason group 27 "Marine and RV" and group 27 "golf cart" batteries can have a weight difference of up to 20%, is the design of the plates? Not picking on any manufacturer, just recalled seeing a weight difference before, same size, and didn't consider the application as being the reason there was the difference. I just assumed it was to cut cost: http://www.atbatt.com/interstate-srm-27-12v-deep-cycle-marine-rv-battery.asp and http://www.trojanbattery.com/pdf/ProdSpecGuide.pdf I'm guessing the lighter trojans are indeed to cut cost, since the only difference seems to be capacity.

Obviously it's not fair to compare the two, the golf cart batteries I'm looking at (Trojan) don't even bother to list any sort of cranking amp, as that is not what they are designed for. The different design of the "hybrid" batteries is better able to withstand the high draw from starting?
 

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