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Why not go with an AGM Battery? #4624598
01/05/18 09:02 AM
01/05/18 09:02 AM
Joined: Mar 2008
Posts: 5,943
Michigan
ZZman Offline OP
ZZman  Offline OP
Joined: Mar 2008
Posts: 5,943
Michigan
I had to look up what a AGM battery was. From what I read it is far superior to a normal vehicle battery.

Your thoughts?


2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
Re: Why not go with an AGM Battery? [Re: ZZman] #4624600
01/05/18 09:06 AM
01/05/18 09:06 AM
Joined: Jun 2003
Posts: 17,347
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,347
Deplorable in apple valley, ca
I like them. They dont corrode the terminals like a flooded battery does.


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Why not go with an AGM Battery? [Re: ZZman] #4624607
01/05/18 09:12 AM
01/05/18 09:12 AM
Joined: Dec 2011
Posts: 4,738
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 4,738
North Carolina
East Penn AGM (NAPA's "The Legend) is what I always buy.

Factory Varta AGM in the Phaeton is at 13 years and still going strong.


"Zed's dead baby, Zed's dead."
Re: Why not go with an AGM Battery? [Re: Chris142] #4624612
01/05/18 09:15 AM
01/05/18 09:15 AM
Joined: Aug 2010
Posts: 5,652
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,652
Champlain/Hudson Valley
Somewhere, somehow the AGM's differ in the way they recharge optimally.

I've read that a vehicle's charging system needs to tailored to them. The same goes for battery chargers.

I don't know if it's a huge difference or not.

I have nothing AGAINST AGM batteries.

I do believe the industry wants to say good-bye to old technology. If FLA batteries make up 99% of the business, it'll take time.

Re: Why not go with an AGM Battery? [Re: ZZman] #4624618
01/05/18 09:18 AM
01/05/18 09:18 AM
Joined: Oct 2009
Posts: 3,213
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,213
Wet side WA
Wrong thread.

Last edited by JohnnyJohnson; 01/05/18 09:21 AM.

2004 Corolla 124770
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Why not go with an AGM Battery? [Re: ZZman] #4624620
01/05/18 09:22 AM
01/05/18 09:22 AM
Joined: Oct 2002
Posts: 36,290
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,290
Great Lakes
Originally Posted By: ZZman
Why not go with an AGM Battery?

One reason is cost.


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)
Re: Why not go with an AGM Battery? [Re: ZZman] #4624624
01/05/18 09:24 AM
01/05/18 09:24 AM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
I got an East Penn AGM battery for my Liberty for the same as a Diehard Gold...Blain's Farm and Fleet usually has them on sale. Not sure if you have them in Michigan.


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Why not go with an AGM Battery? [Re: Quattro Pete] #4624625
01/05/18 09:24 AM
01/05/18 09:24 AM
Joined: Oct 2009
Posts: 3,213
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,213
Wet side WA
Originally Posted By: Quattro Pete
Originally Posted By: ZZman
Why not go with an AGM Battery?

One reason is cost.


Yes sometimes we get so proud of our new technology we hurt the bottom line.


2004 Corolla 124770
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Why not go with an AGM Battery? [Re: ZZman] #4624638
01/05/18 09:41 AM
01/05/18 09:41 AM
Joined: Aug 2003
Posts: 12,895
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 12,895
NE,Ohio
Several reasons
1) cost
2)needs different charging.
3)availability


Cost- for the 2013 outback the Penn-Deka FLA battery was 83$ with 3 year full replacement warranty.
The cheapest agm I found with at least a 3 year warranty in group 25 was around $190

Something like https://www.pepboys.com/product/details/844466/00566
I am sure it is superior but is it over 2x as superior? Esp. for my climate and use?

2) Agm batteries want slightly higher voltage. If your car is designed for AGM its better.
(see google for more on this not writing a book here)

3) group 25 doesnt have many agm batteries available.


2019 Jeep Cherokee Trailhawk 2.0T
Re: Why not go with an AGM Battery? [Re: ZZman] #4624639
01/05/18 09:41 AM
01/05/18 09:41 AM
Joined: Apr 2010
Posts: 13,534
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,534
Chicago, IL
Originally Posted By: ZZman
I had to look up what a AGM battery was. From what I read it is far superior to a normal vehicle battery.

Your thoughts?



Cost is the biggest thing, but if the battery lasts longer and can tolerate more severe use, then I'd say it's paying for itself.


2017 Chevrolet Corvette Grand Sport
Re: Why not go with an AGM Battery? [Re: Chris142] #4624669
01/05/18 10:07 AM
01/05/18 10:07 AM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline
john_pifer  Offline
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Originally Posted By: Chris142
I like them. They dont corrode the terminals like a flooded battery does.


Easily prevented by applying grease to protect the cable terminals.


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Why not go with an AGM Battery? [Re: ZZman] #4624686
01/05/18 10:22 AM
01/05/18 10:22 AM
Joined: Dec 2003
Posts: 9,800
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,800
Florida, Cape Coral
Wonder why the warranty is only as good as a cheaper flooded battery?


CX5 Touring 2.5L :-)
Re: Why not go with an AGM Battery? [Re: ZZman] #4624688
01/05/18 10:25 AM
01/05/18 10:25 AM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline
john_pifer  Offline
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Lots of information available on Wiki and through other sources. There are some disadvantages to AGM & gel batts. They're not superior in every way.


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Why not go with an AGM Battery? [Re: Eddie] #4624691
01/05/18 10:27 AM
01/05/18 10:27 AM
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
john_pifer Offline
john_pifer  Offline
Joined: Jul 2012
Posts: 2,103
Nashville, TN via Memphis
Originally Posted By: Eddie
Wonder why the warranty is only as good as a cheaper flooded battery?


Wikipedia says a conventional flooded-cell batt. will actually last longer WITH PROPER MAINTENANCE. That's probably the reason it seems like the AGMs last longer - most people don't maintain water levels in the regular batteries.


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella

Re: Why not go with an AGM Battery? [Re: ZZman] #4624702
01/05/18 10:38 AM
01/05/18 10:38 AM
Joined: Dec 2010
Posts: 790
Romania
Andy636 Offline
Andy636  Offline
Joined: Dec 2010
Posts: 790
Romania
I don't know who makes the batteries for Bosch, but whenever a OEM battery kicks the bucket, Bosch S5 is all I'll swap it for.

All other brands like Yuasa and Varta are toast after 3-4 years...

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