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  Topic Review (Newest First)
02-27-2019 07:05 PM
repairman54 I just changed the OEM Delco AGM battery in my '11 Tahoe. At going on 8 yrs. I figured I'd be proactive. I need those -25 F starts when I'm away snowmobiling and the Tahoe with power running boards and a million exit lights I need a top notch battery. It's in the garage on a Battery Minder for summer camper use. I installed a AGM Odyssey as a replacement. Pricey but I've gotten over 10 yrs on them in my Harley which is a hard cranking beast and they have come out at that age still cranking like a champ, then again no kick start so no chances being taken. BatteryMart ships them in a day or two. AGM are the only batteries I'll buy for vehicles and the toys, no more NeverStarts, DieFast or Duracrap flooded batteries for me anymore. I've had every one of them fail due to internal connector failure while still in the warranty in the past 15 yrs. .
02-22-2019 10:59 PM
Colt Hero On July 10, 2016, I just threw in a Walmart Everstart (Maxx H6?) battery 3-year free replacement, + 2 years pro-rated? Paid a little over $100, IIRC. No problems. This was at 93337 miles and I’m now at almost 127,000 miles. By the time I hit the 3-year anniversary, I’ll have around 133,000 on the odometer.

The only thing I’d say about these Everstart batteries is - I’d go with the model with the higher CCA number if I lived in a snow belt state. When it gets cold down here in the South, it cranks noticeably slower.
02-22-2019 01:43 PM
c&wsinbad HCO41 and all others---I apologize for being an idiot and assuming the type of battery. I raised the 'Nox hood this morning and discovered--as HCO41 stated--that I have a 48AGM battery sitting there.
02-22-2019 12:47 AM
tizan https://my.chevrolet.com/content/dam...ers-manual.pdf


For the 2018/19



Page 303 of the manual...OEM battery is supposed to be AGM on all engine models.






Quote :


The vehicle has an Absorbing GlassMat (AGM) 12-volt battery.Installation of a standard 12-volt battery will result in reduced 12-volt battery life. When using a 12-volt battery charger on the 12-volt AGM battery, some chargers have an AGM battery setting on the charger. If available, use the AGM setting on the charger, to limit charge voltage to 14.8 volts.


===
Using a AGM battery in a car supposed to be equipped with standard is going to cause it to last less long and vice versa is true too.



AGM batteries will vent out elecrolyte when the voltage goes above 14.8V it seems.


Standard batteries will last long if it is used in situation that keep the charge between 100% to 50%. Deep discharge and not fully recharging shortens its life expectancy.


Contemporary cars with all the monitoring system even when the car is not used will be draining the batteries below the 50% regularly i am sure.




02-21-2019 11:51 PM
c&wsinbad
Quote:
Originally Posted by HCO41 View Post
I just checked our 2018 Equinoxs and found that both the 1.5 Premier and the 1.6 diesel have OEM glass mat batteries. I didn't take the hold down bracket off but did see the 48 AGM designation.

I have an Optima AGM 6v battery in one of my old cars that sits for months, yet will start the car any time I try it.
Regarding OEM Delco; I have a 2001 2500HD Diesel that uses two batteries. The OEM Delcos only lasted for 3 years. I replaced them with Walmart Everstart Maxx batteries and they're still cranking. I don't use the truck much so I keep a maintainer on it. I do the same with my 10K generator, also using an Everstart battery, and find the batteries last a lot longer if they have to sit for long periods.
Howard
Thanks. I was going by what the service tech advised when they changed. I'll take a look at the battery tomorrow and see what it is.
02-21-2019 10:11 PM
HCO41
Quote:
Originally Posted by c&wsinbad View Post
My 2018 'Nox Premier has stop/start system, but the battery is NOT AGM. It's a regular lead plate/acid battery---and has just a single battery. Also--unfortunately--I just had the battery replaced under warranty. It was showing a high resistance to the OnStar Diagnostic system, resulting in numerous advisory messages from OnStar that dealer service was required.
I just checked our 2018 Equinoxs and found that both the 1.5 Premier and the 1.6 diesel have OEM glass mat batteries. I didn't take the hold down bracket off but did see the 48 AGM designation.

I have an Optima AGM 6v battery in one of my old cars that sits for months, yet will start the car any time I try it.
Regarding OEM Delco; I have a 2001 2500HD Diesel that uses two batteries. The OEM Delcos only lasted for 3 years. I replaced them with Walmart Everstart Maxx batteries and they're still cranking. I don't use the truck much so I keep a maintainer on it. I do the same with my 10K generator, also using an Everstart battery, and find the batteries last a lot longer if they have to sit for long periods.
Howard
02-20-2019 10:06 PM
SUP Still not sure of what battery I will get but it seems that AC Delco is the battery most have purchased with some not lasting very long (not sure any battery last like they used to.

I will get one of the plug in 9 volt battery units that keep all your electronics in place while you change battery. Good recommendation!

I also like the recomendation to do a battery date check prior to purchase. No sense getting a battery that has been sitting around a while.

I do use a battery tender but the SRX is usually driven at least twice during the week so probably do not need the tender here in Houston area.


What about Sears Diehard? These use to be good batteries (many years back).

SUP
02-20-2019 02:38 PM
daveg95harley Do You Use a Battery Tender on Your M/C Battery & Lawn Mower I Used to Be Deployed to Middle East For (6) Months @ a Time. Would Come Back & Battery Would Be Bad. Went Thru (2) Different Batteries. Got a "New" Battery & Bought a Battery Tender @ Auto Parts Store. Battery Been Doing Great For (2) Years Now. Starts 1st Time Even (if) Hasn't Been Started All Year. Well Worth the Money Spent. Good Luck!! Alternator Putting Out Good Voltage
02-19-2019 09:20 PM
BandDirector My original Delco battery didn't make it 2 years on my 2015 Equinox. I went with a Duracell brand battery from Sams Club and it has a 3 year free replacement. Been in for 2 years now and haven't had any problems!
02-19-2019 06:56 PM
JHughesA
Quote:
Originally Posted by garbec01 View Post
You might want to research replacing the battery on this car. I've read that you should attach a memory saver prior to disconnecting the battery or numerous computer issues occur and settings will need to be reset.

.
My Ford truck is like that. Let's just say I had a few choice words to say when I learned this the hard way. I went to pass emissions test and they couldn't read the codes....due to me replacing battery. Had to pay to have codes put back in correctly, omg I was angry.
This was 15 yrs ago. Please tell me these new cars aren't still doing this
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