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Recommend a good battery...

Walmart battery. They are everywhere.
 
The only dual post option not on indefinite backorder was optima at $201ea

Rated at 800cca 3 year free replacement warranty

Bought from advance auto, new to town

I had the counter guy test tube ccas with his midtronics tester, 1099 and 1075, impressive:smokin:

I'll update this in a couple years, if the zombie apocalypse has web....


Now I need to look up those magic tricks to see if I can bring back these 7yo diehard agm bats...
 
Thanx...
Yea me to..
I can get away with a group 34 agm.
Gunna pull some dimensions and start cold calling mfg's monday:beer:
 
bgaidan said:
Anyone have any tricks for bringing an AGM back to life? I have two Duralast "Platinum AGM" batteries that came with a rig I bought a couple years ago. They were both dead when I got it and the PO gave me his number and I was able to warranty them at Advance. I only put one back in and it lasted a couple years and was completely dead and wouldn't take a chage. Put the other in a couple months ago and was fine for a run, but let the truck sit too long without a maintainer and now it's completely dead and won't charge it all too. They're well out of warranty now.

I bought a Noco Genius charger and tried that, including trying to charge it in parallel with another good battery but no luck.

Any tricks to bring $400 worth of batteries back to life?
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Late to the party... Have had good results with DIGITAL 400
 
Projectjunkie said:
I did some legwork on Wal-Mart batteries

they have 3 tiers of flooded, and then an agm

I specifically looked at group 65

the "korean" or any " 'Stan. " battery is junk, it may or may not have the red/green electrolyte eye

the "made in Mexico " batteries, group 65, are identical weight, identical case markings, are stamped 650 700cca depending on "grade"

Using the midtronics super duper computer analyzer, all three of these batteries put out 880-900cca. Consistently. These batteries also have "jcha" in the serial number. I've tested maybe a dozen of these batteries, bought 5 myself, and am confident that this is a top shelf Johnson Controls battery being sold with 3 different warranties for 3 different prices.

$55, 75, 94

Now, if you get mathy about it, and keep the vehicle for three long haul, and warranty the $94 battery at the end of its free replacement period, you will get the most months per dollar.

But, if you need your 7.3 to start now, and don't want to play warranty games, you can get the same battery for $55


*I verified that the $55 korean battery, on the same shelf, with the same sticker, barely made rated capacity

Next up the "platinum " "gel " battery, in group 24, also appears to be the top shelf Johnson controls that is sold under a hundred different labels. I didn't crawl as far down that rabbit hole, just enough to satisfy my curiosity and get one for my DD so i don't worry about corroded cables. I got spoiled with the AGMs in my tow rig

*attached is a picture of the readout on a $55 group 65

photo17165.jpg
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All good things must come to an end...

The group 65 battery was stickered at 650cca and consistently tested at 895cca plus. Now they are made in south Korea and test at 774-5cca

I'm still buying them for beater trucks, grudgingly
 
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Five Excide AGM batteries have shit the bed and my battery charger won't revive them. Also tried "a bit above crotch height" drop onto concrete along with 'tandem with another rig' attempts. Two for one rig, one for the plow, one for the Mustang, and one for the S10---> FJ40. Main interest is Group 34.

So now I'm trying to track down something semi-good and good price.

Who is the AGM battery to get that isn't $500? I probably won't worry about AGM for Mustang.
 

DEKA 9A48 Battery | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.
www.rockauto.com

Deka 9A48

I have a couple years on it in the JKU, no complaints. I haven't had it long enough or used it hard enough to say it's better than the O'reilly AGMs I used to run, but it is cheaper and the Deka brand has a good reputation.
 
Just threw a pair of these in my 2017 Cummins from Wally World.

EverStart Platinum AGM Automotive Battery, Group Size H7 12 Volt 850 CCA​

$179.84

Cheapest H7 AGM out there with a 4 year warranty. Just made the switch from the NAPA AGM equivalent which is 249.00. We’ll see how they last.


The X2 Power in my crawler is still going strong 7 years later. I do put the trickle charger on it if it sits for more than a month or 2.
 
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Any recommendations on 4 6v pallet jack batteries? Not looking to dump $800 on something that might take 6 months to sell.
 
That sounds like a great idea! It's always valuable to hear about different experiences with auto batteries. I've never tried Exide's AGM batteries, but it's interesting to hear about your switch to a Red Top Optima. Getting one for $20 sounds like a steal, especially if it's holding up well in your XJ despite its age. I recently switched to a Red Top Optima that I purchased secondhand, and it's been surprisingly reliable.
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Elwenil said:
No matter what battery you get, put a solar or other type trickle charger on it and it will last a lot longer in my experience. When I bought my Ramcharger in '06, it had a dead Walmart battery in it. It took a charge and with a solar maintainer on it, I didn't have to replace it until the winter of 2015.
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I've been unhooking them if parked for more than a week or two, or turning the master switch off.


Seems like group 31 batteries are generally quite rugged.
Have pulled some that failed that were over 20 years old.
The one in my skid steer is from 2010 and has only not started a couple times on -25* days and hadn't been run for a couple weeks.

Group 65s on the other hand, I'm lucky to get 2 years on those. Had a set that shut the bed in under 6 months even.
 
Gray, heavy as a mf, group 31, came from battery master, dual terminal.

I think the brand is Northstar.
 
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Just got 2 of the X2 from Batteries+ for the Duramax, checked the dates and they lasted 7 years for me. One is still holding 3/4 of a charge and going into the garage for a hang around power source.
 
Weasel said:
Just got 2 of the X2 from Batteries+ for the Duramax, checked the dates and they lasted 7 years for me. One is still holding 3/4 of a charge and going into the garage for a hang around power source.
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Good to hear, I just put 2 of those in my 2006 Duramax, I'm on 4 years in my Toyota's.
 
AKnate said:
I've been unhooking them if parked for more than a week or two, or turning the master switch off.


Seems like group 31 batteries are generally quite rugged.
Have pulled some that failed that were over 20 years old.
The one in my skid steer is from 2010 and has only not started a couple times on -25* days and hadn't been run for a couple weeks.

Group 65s on the other hand, I'm lucky to get 2 years on those. Had a set that shut the bed in under 6 months even.
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Must be an Alaska thing. I have decent luck with 65s, 4-5 years. I have one that's 20+ in a tractor and still going.

Converted my truck to 31s because lead terminals suck and I prefer post.
 
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TRINDU said:
Must be an Alaska thing. I have decent luck with 65s, 4-5 years. I have one that's 20+ in a tractor and still going.

Converted my truck to 31s because lead terminals suck and I prefer post.
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They go dead, freeze and either blow apart or have shit output.
 
Weasel said:
Yeah think that killed mine this year. Left a dome light on, drained, froze, dead.
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My 5500 I'm hoping was the TIPM, which I had rebuilt.
It'd be fine parked for weeks and be fine, then randomly kill the batteries in a day or two, sometimes even overnight.
Only when cold too.

My f350, not sure what its deal is. Not really anything that should use power when it's not running. I just unhook the batteries if I'm not using it in a couple days.

G35, it'll kill the battery in under 2 weeks.

All the equipment and big trucks don't do that. Can sit for a year and still fire up without fuss. My F-800 lights off like it just was shut off 10 mins before. The Mack takes some cranking but the batteries don't care.
Course it runs just fine without the key being on even.
 
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