Battery Help Please - 24F vs 27F

I got a 2008 TRD Doublecab tacoma WITH tow package. After 4yrs and 4months, my factory battery just died on me. I only have 27,000 miles on it.... Pretty sure the sorching SoCal heat this summer helped kill it off.

So I went to Costco to get a new battery cause it was the closest to me and plus it was getting late and dark right after work. All they had were their brand Kirkland which the guy there said were made by Interstate. Anyway, i know my truck takes the 27F battery. But they didn't carry that. All they had was the 24F which according to the fitment booklet there is perfect for tacomas without the tow package. So before i bought it, I called up my dealership (Longo Toyota) to check their prices and i made it very clear I had the Tow Package. The sales rep on the phone at the dealership told me what i needed was a 24F battery for $114.00. So since Costco was only 74.99 ($81 total with tax and core exchange) and was a 24F i went ahead and got the Costco one.

So I installed it right then and there in the parking lot and my truck started up perfectly. Been 2 days and not problem.

My question is this:
Is having the 24F battery in my truck safe if my original was a 27F? I mean will it do any damage? Even though I have the tow package i don't really tow anything. I just use the bed. And all i have aftermarket that uses electricity is aftermarket fog lights i use as reverse lights and a dash cam plugged in the cig outlet along with a phone charger.

I know that was a lot of read for a simple question but i just wanted to let you know the reason for me getting this battery.

Any and all help to my question is very much appreciated. Thanks.

 

You won't have any issues... As long as it is a 12V battery the only real differences, besides fit, are Cranking Amps and Reserve Capacity.

 

Thanks Blygy.

 

Starts up fine as if it were brand new factory 27F. No sluggish feel or anything. the cca is 640 and ca is 800. Not sure what the factory battery was for the 27F.

Here are some pics i just took. as you can see it is definitely smaller than the stock 27F. A bit taller too. only by a 1/4inch but that makes it so damn hard to put the battery holder on top back on because for some reason they made it only where 1 side is adjustable.

 

If it fits securely either will be fine.

In general...

The 27F has more reserve capacity but less CCA

The 24F has more CCA but less reserve capacity.

Either way as long as you're not leaving your headlights on for extended periods of time without the engine running, you'll be fine.

 

Thanks, That's what i figured. Just wanted to make sure from the guys here like you and others who actually know and own our tacoma trucks.

sweet...that's a load off my mind. thanks.

 

Basically COLD cranking amps is how many amps you can pull from that battery at 0*.

Batteries don't work as well when they're cold and engines are harder to turn over when they're cold, so you want to have plenty of CCAs on those cold days. You'll be fine with what you have.

The reserve capacity is how long a fully charged battery will discharge 25 amps without falling below 10.5 volts. A fully charged battery should be in the neighborhood of 12.6 volts. Basically I believe that rating came about as a way to measure how long your battery will stay charged while running a car without a working charging system. Also gives you an idea of how long you can run your headlights and your stereo and your blender and all that other shit with the engine off.

On average a starter pulls about 200 amps give or take 50 ???. Couldn't tell you if there is a minimum CCA spec from Toyota but generally speaking I don't think you're going to find a battery that will fit in the stock location that couldn't turn over our trucks, even at 0.

Yours is good though, no worries there.

 

yeah i run a 34r battery which i believe is a little smaller than a 24f, and havent had any issues. yes a 24f is smaller, but its also aftermarket vs oe, so id be willing to bet its still a more powerful battery than what your truck came with. those kirkland batteries last forever, my grandparents use them in their cars and dont have any issues.

 

i was bummed when my costco man told me my tacoma is not covered by costco..

they have that costco lingo size thing..what is the 24f? i think they use "group __" or something like that right? best battery deal going...almost half the money for my wifes subaru.

 

what do you mean your tacoma is not covered by costco? as in they don't carry your battery?

 

Well your dealer is a moron then
Check he chart from Toyota. All V6 and V8 Toyota trucks capable of towing trailer with electric brakes require 27F
http://www.toyota.com/toyota-owners-online-theme/pdf/Batteries2011-LowRes.pdf
2005-08 non Tow package line never got updated but clearly tow package version requires 27F

 

Nope
check Toyota chart Power rating page 2
http://www.toyota.com/toyota-owners-online-theme/pdf/Batteries2011-LowRes.pdf
24F is too small battery for V6 trucks.

 

You have a Costco man? The closest thing to a person who can help me at Costco is the lady in the freezer aisle serving samples of Bagel Bites.

They are great for some things, but when it comes to needing someone to ask a question, I would say they rank the worst out of any place I frequent.

 

are you just going off the chart or also by experience?

 

Bullshit. Even if the reserve capacity and cranking amps were somehow too low the 130 amp alt is more than enough to make up for the small difference.

Toyota's own 27f true 2 battery -- 625 CCA 130 RC. Compare to his battery.

Also, before you go telling him the battery is too small, why don't we see if he even tows anything with electric trailer brakes. Not that it matters, no way you're pulling that many amps anyway.

 

It will be fine. The only reason the tow package has the extra capacity battery is to have additional reserve for electric trailer brakes. You won't notice anything different if you don't tow, and probably won't notice a problem even if you do.

 

Just noticed your statement was a 24F is too small for V6 trucks. But your PDF shows 24F for a V6. granted its for the non tow package, but still a V6.

Don't tow anything. Just haul in the bed.

 

I am guessing Toyota did not change this retrospectively. Notice 2009+ V6 trucks all have 27F battery with or with out tow package.
2005-2008 tow package trucks need 27F.

You arguing with me or the chart ? its right there in the chart 27F battery is bigger. I only point out that your statement about 24F vs 27F was not correct.

 

It's all irrelevant. Look at cca and rc. Any decent 24f will outperform the oe 27f

 

Nope, you also pointed out how a 24F is TOO SMALL or that his truck REQUIRES a 27F, it NEEDS a 27F.


In general my statement about 24 vs 27F batteries is true. Not always the case, thus my preemptive statement, in general.

Compare duralast golds.

710 165 vs 750 130

I'll come up with some more examples later.

AND perhaps I'm wrong on my original statement, maybe I should have added the caveat, in my experience, as well. None-the-less the rest of my posts hold true.