24F vs 27F Battery or..?

I know there are numerous threads about this. I did search, but did not find anything definitive or recent.

I am looking at replacing the battery on my truck to accommodate some extra electrical bits, ditch lights, light bar, scene lighting, but most importantly a Smittybuilt X20 10k winch. Per Smittybuilt the winch needs a battery with at least 650 CCAs. My stock battery puts out a 582 CCAs.

I have had two X2 AGMs (Northstar for Batteries+Bulbs) in the past and they are solid. I always kept them topped off on a Noco Genius tender and they have lasted well past their warranty.

I have read threads/posts about the radiator support cracking under use with heavier battery set ups group 35, dual bats etc., hell I have read some posts about folks who wheel hard with the stock battery and have cracking issues at or near the radiator support on 2nd and 3rd gens. In the cracked radiator support thread with larger tire sizes its possible heavy hits may cause the tire to hit the wheel well during up travel causing or exacerbating the issue.

None the less - I am trying to decide on a battery while minimizing the potential for cracking the rad support. I don't wheel hard nor hit whoops at 60+, I use my truck to hunt and take it slow on the rougher terrain where a wheel might lift etc. But there are times when hauling ass down a gravel/washboard road do happen.

Current choices

- Stock 24f is around ~42lbs (winch may kill this thing)
- 24F X2 AGM is 56.9lbs 840 CCA, 76AH, 160 min reserve (Drops right on in)
- 27F X2 AGM is 66.95lbs 930 CCA, 92AH, 190 min reserve (Gotta purchase 2nd gen tow package tray)

Hoping some folks might chime in on their experience going with a lighter adequate battery, or wishing they went larger/smaller etc.

Thanks TW!

 

Similar situation. 24F AGM

/thread lol

 

24f AGM

simple solution to a simple problem

 

I think the 27F is an inch or two longer on the long side than the 24F.

I run my Tacoma (2010 V6) on a stock size AGM battery (probably the size 24), I can't remember what brand, but the CCA is in excess of 800A, and it's held up fine for a Smittybilt 9500 lb winch when I've needed it.

I upgraded the battery in my 2008 T4R V8 trail rig (tacoma is a pre-runner with a locker but can't handle some trails that I want to do) to a 27F Optima Yellow top. I ended up just scrapping the tray on the 4Runner since the "universal" tray I bought would have needed some cutting to access the battery tie-down points on the frame, and I didn't feel like spending the extra cash to get the Optima specific bottom-clamping hold down mount. Is there really a need for a tray on a sealed battery, especially if the tray isn't structural? Fitting the 27 in that engine bay is workable, but pretty tight on that vehicle (a V6 Tacoma probably has a little more space)

I also have a 9500 lb winch on the 4Runner, but haven't used it yet. I don't know how important the extra few minutes of reserve would end up being on a winch pull (those reserve times are only for something like a 15A draw) or heavy lighting use. If you're looking to use the lighting a lot without the engine running, it might be better to run two smaller batteries with a switching set-up which protects one from getting run down by the accessories so you'll always be able to start up the next morning.

 

No. You get zero benefit from running an AGM unless your vehicle was designed for an AGM and the Tacoma's were not.

 

-group 31 Wet 55lbs, 950CCA 175Reserve (+aftermarket 31 tray +Cruiser oil filler.)

 

Hahahahahahahahahahahaha

edit: hahahaha

still laughing.

 

I think the 24F X2 AGM is a solid choice as long as you can deal with the charging voltage.

When you say "stock" 24F I hope you mean a premium offering not the battery Toyota slaps in there or any other bargen basement battery. Maybe something like the Wal-Mart EverStart Maxx which will give you 750 CCA and has a complete replacement 3 year warranty so if you do fry it they'll replace it. About $120.

 

The stock Clarios battery that came with the truck. I mentioned the weight of the OE for comparison sake of the AGMs mentioned and the radiator core support. You are certainly correct, a premium flooded 24F offering is far superior than the OE. I've had great luck with the X2s in the past hence my preference.

 

True. But lots of people are tuned and it's an easy fix to change the charging voltage to accommodate AGM batteries..

 

@vicali - Which year(s) and Land or FJ for Cruiser oil filler are you referring too?

 

12185-38011 from @RyanDCLB 's great thread.

 

Group 31 is good for me now, but I might switch over to Lithium some day for the weight savings. See here: https://www.takethetruck.com/blog/overlanding-battery

 

I run a 27f and it only needed minor cutting of the tray. still lots of room.

 

34R here

 

It also doesn’t spill, takes less maintenance, and many have deep cycle ability (or at least more than flooded cell) which you need for winching, which the OP specifically asked about.

 

Interesting read, I've seen Kayak/trolling motor anglers running Dakota batteries. The operating/charge low temp threshold is -20F per Dakota, thats impressive for a Lithium battery.

 

CCA's or Cold Cranking Amps mean nothing for a winch or anything that draws amperage from a battery for sustained period of time! It is the RC or Reserve Capacity rating that counts.

 

CCA/CA does mean something to a winch, too little and the motor will stall. RC is minutes to 10.5V at 25A, while CCA/CA is current output after 30 seconds.

 

I have ran winches off OEM lead batteries and AGM, doesn’t much matter. The 650 is a recommendation, not a requirement