07-11-2021, 11:43 AM
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#1
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Join Date: Aug 2017
Location: Dallas Texas
Posts: 89
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Member
Join Date: Aug 2017
Location: Dallas Texas
Posts: 89
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So I need a new battery…
I’m trying to decide if it’s worth going AGM for my use.
The only reason I am even considering it is we recently got a Dometic CFX3 55IM. It spends 99% of its time in our house as a beer fridge. The rest of the time it will be used for road trips we take several times a year. When we get to the destination it will move into the house we are at and once again be used as a beer fridge.
I don’t have any other accessories so for that use a regular starting battery would work fine.
I installed the ARB wiring kit to have an always on outlet in the back to power the fridge. I’d like to be able to use it at work to make grocery runs every now and then during lunch. This would have the fridge running off the battery for several hours a day. I’m in Texas so it can get well over 100 degrees inside my 4runner while siting in the parking lot.
We will also do more camping in the future so that is a consideration.
If I were going to use the fridge more often in the car I’d just go with the Dometic PLB40 battery. But for now, it’s too much of an expense and I need a new starting battery anyway.
So looking at the the X2Power or Duracell AGM from Batteries Plus. But of course there is the charging issue with the lower voltage the 4Runner puts out. Seems like there is some debate whether it’s really an issue or not.
I’d just assume go with a standard battery but don’t want the fridge killing it. Maybe it would be fine, that’s the info I am looking for from those who have a similar setup.
Any thoughts from those with similar setups? Thanks.
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07-11-2021, 01:24 PM
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#2
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Member
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Join Date: Mar 2019
Location: Nyc
Posts: 628
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Join Date: Mar 2019
Location: Nyc
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I got delco agm from eBay 130 . Shipped h7 sized fit great and has the power to back it up
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07-11-2021, 01:24 PM
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#3
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Member
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Join Date: Jul 2014
Location: los angeles
Posts: 305
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Member
Join Date: Jul 2014
Location: los angeles
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ODYSSEY 34R PC1500 with Height adapter. One and Done
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07-11-2021, 01:41 PM
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#4
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Member
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Join Date: Mar 2021
Location: So Cal
Posts: 93
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Member
Join Date: Mar 2021
Location: So Cal
Posts: 93
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I needed a new battery a few months ago and wanted to get an AGM but after some research stayed with a normal battery. The 4R doesn't quite meet the charge voltage to fully charge them to 100% without using a diode modification which is an easy thing actually. I'm sure they work but you're not likely to get the full charge capacity of a AGM which is one of the main reasons for getting an AGM. They are more robust with vibration however. Maybe next battery will be AGM.
Last edited by fourrunnerbill; 07-11-2021 at 01:46 PM.
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07-11-2021, 03:08 PM
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#5
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Senior Member
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Join Date: Aug 2008
Location: PNW
Age: 42
Posts: 1,395
Real Name: Mike
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Senior Member
Join Date: Aug 2008
Location: PNW
Age: 42
Posts: 1,395
Real Name: Mike
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I have two the the X2. Awesome battery and can’t beat the 48 month warranty. I paid $278 for mine(each) but to me it well worth it
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‘14 SR5 in white
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07-11-2021, 04:10 PM
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#6
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Join Date: Feb 2013
Location: Calgary, Alberta
Age: 37
Posts: 344
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Member
Join Date: Feb 2013
Location: Calgary, Alberta
Age: 37
Posts: 344
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I have a Northstar AGM and its great!
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2012 Trail Edition (No KDSS, Fox 2.5's front, OME rear, 34" KO2's and 33" STT PRO's, Camburg UCA's, Total Chaos LCA's, Custom bumpers and sliders, Baja Utility Rack)
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07-11-2021, 06:34 PM
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#7
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Member
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Join Date: Jan 2020
Location: TX
Posts: 296
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Member
Join Date: Jan 2020
Location: TX
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In my previous '13 FJ Cruiser I replaced the original battery with a regular battery. It leaked and ate a hole in the metal support underneath it. I had no indication it was leaking until I noticed what looked like rusty water spots in my garage. I realized later that they were acid stains. I didn't see all of the chewed up metal and paint until I removed the battery and plastic battery tray.
I promptly replaced it with an AGM battery from NAPA. When the original battery in my 4Runner dies I will replace it with an AGM. I don't want to have to deal with a leaky battery again.
Anyway, just something to think about.
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07-12-2021, 03:19 AM
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#8
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Senior Member
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Join Date: Jan 2017
Location: san diego
Posts: 3,188
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Join Date: Jan 2017
Location: san diego
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odyssey group 31 EXTREEEEEME.
After i installed that battery, I didn't need viagra anymore. Who knew?
all kidding aside, its been a great battery if you can swing the cost, and upgrade to an appropriate battery tray. Used a cheap GM diode to trick the alternator.
Start up shows 14.4 to 14.7 volts i think. Driving state it stays around 13.8 volts. I can power a fridge for up to 2 to 3 days with no problems (haven't pushed it farther). Can power my winch, accessory lights/driving lights, and camp/cargo lights, all though not at the same time.
I bought it to power my winch since my winch will killed my OEM battery very quickly, but found it more useful for powering other stuff (as listed above).
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2016 trail 4runner, twin locked on 34's.
Can read more of my build here (2 parts):
https://www.lasfit.com/blogs/news/ho...ad-build-part1
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07-12-2021, 08:54 AM
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#9
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Member
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Join Date: Aug 2017
Location: Dallas Texas
Posts: 89
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Member
Join Date: Aug 2017
Location: Dallas Texas
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So how many of you with the AGMs have upped the charging voltage with the GM fuse? How many have simply done nothing but run stock with the AGM? I'm curious if it's really necessary.
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07-12-2021, 12:22 PM
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#10
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Member
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Join Date: Sep 2016
Posts: 181
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Join Date: Sep 2016
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Quote:
Originally Posted by Dynamo
In my previous '13 FJ Cruiser I replaced the original battery with a regular battery. It leaked and ate a hole in the metal support underneath it. I had no indication it was leaking until I noticed what looked like rusty water spots in my garage. I realized later that they were acid stains. I didn't see all of the chewed up metal and paint until I removed the battery and plastic battery tray.
I promptly replaced it with an AGM battery from NAPA. When the original battery in my 4Runner dies I will replace it with an AGM. I don't want to have to deal with a leaky battery again.
Anyway, just something to think about.
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One thing also to note is that if you go with some massive heavy agm battery, this area and the seams below it can fail as well. I have an odyssey 34 which is around 50lbs, the group size 31 is closer to 80lbs.
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07-12-2021, 01:08 PM
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#11
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Elite Member
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Join Date: Mar 2010
Location: Pittsburgh
Posts: 5,689
Real Name: Chris
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Elite Member
Join Date: Mar 2010
Location: Pittsburgh
Posts: 5,689
Real Name: Chris
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Quote:
Originally Posted by Rack
ODYSSEY 34R PC1500 with Height adapter. One and Done
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Yes, have them in both my cars and they are perfection
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07-12-2021, 01:16 PM
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#12
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Member
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Join Date: Jun 2019
Location: CT/NY
Posts: 978
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Member
Join Date: Jun 2019
Location: CT/NY
Posts: 978
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I have been researching on what AGM to get as well. Definitely sounds worth it even if the 4Runner doesn't quite meet the charge voltage to fully charge them to 100% because it will still be way better than OEM. And if i simply get a NOCO Smart Charger to boost the capacity ill be good for my trips. Most don't even bother and seem to be fine.
I am plaining on only doing a group 34/24??? since its lighter and an easy swap. But i'm only looking to extend run time of my Baja lights and amplified stereo for an extra couple of hours. If i got a fridge i would definitely go much more capacity.
Last edited by Ripper238; 07-12-2021 at 01:44 PM.
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07-12-2021, 01:39 PM
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#13
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Member
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Join Date: Jan 2017
Location: Colorado
Posts: 35
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Member
Join Date: Jan 2017
Location: Colorado
Posts: 35
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Quote:
Originally Posted by vondy21
So how many of you with the AGMs have upped the charging voltage with the GM fuse? How many have simply done nothing but run stock with the AGM? I'm curious if it's really necessary.
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I just added an X2 AGM and did the GM fuse but still too early to give any solid feedback.
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07-12-2021, 01:52 PM
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#14
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Member
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Join Date: Sep 2015
Location: West Orange, NJ
Posts: 79
Real Name: Dave
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Member
Join Date: Sep 2015
Location: West Orange, NJ
Posts: 79
Real Name: Dave
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Die Hard AGM - No diode
I bought a DieHard Gold AGM Automotive Battery - Group Size EP-34R from Sears in October 2016... no diode mods, still working OK. (shh, when they overhear you bragging, they're going to fail just to annoy you, make you look bad).
I got some kind of discount then, it was $134. Looks like they're $220 now.
Advance Auto lists a DieHard Platinum AGM Group size 34 for $220, 3 year replacement. They don't seem to discount the DieHards.
Not sure who makes the DieHard these days.
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07-12-2021, 02:16 PM
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#15
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Senior Member
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Join Date: Jan 2013
Location: OC, Derpifornia
Age: 40
Posts: 1,244
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Senior Member
Join Date: Jan 2013
Location: OC, Derpifornia
Age: 40
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I'm pretty happy with the Duracell in my GTO. I keep it on a trickle charger though.
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