Dual purpose, AGM, best bang for the buck.

About 5 years ago when I bought my battery, X2Power seemed to be the best bang for the buck.

Is that still the case? Or is there a better choice out there?

 

I got a dual post AGM from Costco for like $190 OTD.

24f not 27f though

 

Is it a "dual purpose" battery? I run a fridge on my truck often.

Do you happen to have a link, or model/brand?

 

Made by interstate
https://www.costco.com/interstate-27dc-marine--rv-battery.product.100476408.html?sh=true&nf=true

 

Thanks for the heads up. I'll go check out Costco tomorrow.

 

edit:

Walmart sells this 24F AGM with a 4 yr warranty. About $180ish.

 

I got an x2 power 27F AGM and love it for about 3 years now.
Seems like there are cheaper options now if you want to go dual battery or don’t need the higher specs.

 

That's the same one I had previously. Lasted me almost 5 years. Just not sure if I still NEED all that. Maybe I could save some coin this time.

 

You can probably "rebuild"recondion" your x2 agm at a fraction of the cost ...get some extended life out it or repurpose it for just your fridge freeing up the drain on your starter battery

 

So, I realized my X2Power is still under warranty until December of 2024. So off I go, up to Batteries Plus. The employee takes their load tester, and it checks on the low side, but still in their range of "good", so, unable to warranty. Then, right after the load test, truck won't start. So we put a jump box on it, and after starting, check the alternator, and it's putting out 14.4v.

Anyone have any suggestions?

 

What year truck ? 2nd gen 's use a diode to boost voltage for agm battery .

 

2011. Honestly, I can't remember, but I thought I did the diode already. What voltage should it be at if I did?

 

Load testing a battery does what it sounds like, puts a load on it, pulls amps out. Now it’s sitting in a somewhat depleted state. That’s why it needed a jump start.

Drive it home and do some tests. Voltage idling. Voltage engine off. Then if your meter has peak hold, set it for dc voltage, peak low, then start the engine, it’s called a starter voltage drop test.

 

So, I got 13.35v off. 11.16v minimum after starting, and 14.4-14.5 while running.

How low is normal drop during starting?

 

14.8v is optimal for longevity of agm battery ... 14.4v works just not as long life span

 

I'll have to do the voltage boost. I thought I did it back when I bought the battery, but I guess not. I do top it off about once a month though.

 

According to a chart I have, 11.16 is 35%. But, I’ve seen 11.2 on a brand new vehicle with a new battery. When you see 10.5 or less, it’s time to start thinking about replacing the battery.

 

I’ve been eying that battery, but I have a 27f right now. Did you replace your 27 with the 24? If so does it still fit well despite the smaller size?

 

My 3rd gen comes with 24f, there is a 27f available which I posted above. Might have to be special ordered, not sure.

I suspect the smaller battery would fit though.

 

Ah. I missed that you had a third gen.

IIRC the 27f they sell (that you linked above) is lead acid, not AGM. The only AGM they offer for tacomas is the 24f, hence why I was interested.