ACDelco Gold 48AGM (88864541) 36 Month Warranty AGM BCI Group 48 Battery

I have had this battery for 18 months now, and I'm very happy with it thus far. I've been using AGM batteries in my work for quite a few years (stand alone solar powered automation and control systems) and they are very good performers when treated properly. I've seen them last as long as 7 years in 24/7 duty which to me is quite impressive considering that they're maintenance free. I live in the high desert of NM, about 3200 feet above sea level, and the dry climate and extreme temperatures, regularly above 110 degrees in the dead of summer, wreak havoc on traditional flooded lead acid batteries. They require constant acid level checking and even still always seem to die an early death. In the application I've implemented this battery in, my 2011 Suburban Z71, I'm constantly off road and my truck sits idling regularly on job sites, with underhood temps at very high levels. My "wet" batteries prior to this one generally last a year to 18 months, and the last 3-6 months of their lives are generally indicated by slower cranking and extremely fast discharge with small current loads like my cell phone charger being left on overnight, which honestly is the norm for me. I also run a large inverter for power tools on a regular basis; it's hard wired in and mounted on the floorboard of the vehicle. At 18 months in service this battery still performs like new, which it makes it the best battery I've had in my primary work vehicle in many years. For reference, I've been using the top grade (most expensive) WalMart batteries and my results have been somewhat disappointing, as previously stated. I live in a small town and don't have a lot of choices with things like automotive batteries. The 3 year free replacement warranty gives me a warm fuzzy but I'm betting (and hoping) I won't need to use it. I'm preparing for my second winter with this battery but I'm confident it will hold up based on its performance thus far. Chances are I will own this vehicle until this battery finally fails, and at that point I will update this review. For the time being, it's everything I could ask for in a battery, with lots of cranking power and reserve capacity, and it has done very well with the somewhat extreme workload I've placed upon it. Some big strides have been made in AGM technology in recent years, namely higher current output which makes it more appropriate in automotive applications, and this battery bears that out nicely. I'd say that it's everything I had hoped it would be when I made the switch to AGM for my primary/work vehicle, worth the extra cost in extended life and less hassles with maintenance. I switched to AGM with my Honda GL1800 motorcycle a couple of years ago and the results there have been stellar as well. I hope that my review helps with your purchase decision. Update 10/2/17: Still going strong at 2-1/2 years in service and zero maintenance. Chances are that ACDelco Pro AGM will be my new battery of choice, in spite of the higher price than conventional batteries. Well worth it to me; it appears that longevity will more than offset the price differential. And the less I have to extract a dead battery from my engine compartment, the happier I am. Update 9/7/2018: Still performing as new, 41 months in. It's a keeper. Update 2/27/19: Made it through another winter with no issues. I'm so happy with this battery at almost 4 years in service. Update 11/8/19: This battery is still happy and healthy at 4.5 years in service. Starts my 5.3L V8 Suburban reliably in recent subfreezing weather. I should also mention that my battery terminals are clean, shiny, and corrosion free; it looks like the battery terminal posts are very well sealed against acid and fumes leaking out and destroying cable ends and clamps. Update 4/22/20: 5 years in service without so much as a hiccup. Still plenty of cranking power and zero issues. The extreme workload I mentioned earlier in this review has diminished somewhat these days. My Suburban is more of a daily driver now, although I still use the large inverter regularly for this and that. I replaced the factory alternator at about 105K miles in this vehicle; it was still charging just fine but the bearings were starting to get dry and a little noisy, and I didn't want it failing on me at an inopportune moment (like being many miles from home). But I digress...I'm super pleased with this AGM battery purchase 5 years later. It's been awesome, and shows no sign of giving up anytime soon. Update 10/19/20: 5.5 years in service and still going strong. Update 12/15/20: With subfreezing temps in the teens over the next couple of days here, I thought it best to do a quick health check of this battery considering it's age. I used a carbon pile load tester and it's putting out about 395 Amps at 50 degrees F, which is probably double what I need for cranking. I'll be keeping an eye on its freezing weather performance but I think it will do well. Update 3/1/21: This ACDelco AGM battery made it through the recent Arctic blast with no issues; reliably started my Suburban at 5 degrees F. It's 2 months shy of 6 years old and still going strong. Update 5/24/21: Just passed 6 years since installation, and still working great. Possibly the longest lasting automotive battery I've ever owned. Update 11/5/21: 78 months / 6.5 years in service and still going strong. Temps in the 30s here this morning, and it's still cranking with power to spare. Update 12/12/21: Subfreezing weather has arrived, and this battery is finally showing its age. Slower than normal cranking this morning at 26 degrees F. I conducted a load test and it's down to 340 amps max output. I've seen a lot of sudden failures from traditional flooded batteries over the years, and the failure curve on this one seems to be much more gradual. It's nice to have some warning of impending failure, instead of having to arrange a jump start. I'll run it for a while longer as it's still doing the job, but a battery purchase is in my near future. This has been a really great purchase and has lasted for more than double the 3 year warranty. I highly recommend it, and have zero complaints. Final update 12/16/21: I ordered a replacement today. It's the same brand ACDelco Gold AGM, but I ordered the Group 94R/H7 instead of this Group 48/H6. It has much better cranking amp rating, reserve capacity, and AH rating, and it's $18 less at the time of writing this at $164. It's a little longer by about .6", but otherwise is almost identical and will drop right into my 2011 Suburban with room to spare using the factory battery holddown clamp. These 94Rs are factory equipment on the '14 and newer Chevrolet full size trucks and SUVs, and have the higher capacity to keep up with the ever increasing electrical loads as option sets continue to increase (I.E. higher power infotainment systems, auto pilot systems, heated seats and steering wheels, etc.). I hope it lasts as long as this one did, and I'm convinced that it's the absolute best deal on the market if you want a long lasting premium battery.

Purchased this to try to fix issues with the factory-installed battery in my 2020 Ford Escape Hybrid - kept having the vehicle enter a low battery mode while parked. Ford ships these vehicles with a lower capacity battery that tends to not work for people (search "Ford Escape Hybrid 12v battery issues" and you'll see examples). I decided to replace the old battery with this larger capacity, AGM battery over cheaper brands and am very happy I did so. It solved the low power mode issue - haven't had any problems since I swapped it out. The product arrived in robust packaging that made me feel it was transported well, and it was SO nice to have it delivered instead of having to drag it out of a store (they're pretty heavy). Install process was pretty easy, just search youtube to find others that have done this as well. The battery is under the spare tire in the back of the vehicle. This battery is just about as big as one could be and still fit under the spare in my vehicle. I did not have to make any modifications to the vehicle itself to make this work... just had to move the battery holding bracket to a wider mounting location, which was no issue. To do the job, I found it incredibly helpful to have a socket wrench set, so definitely make sure you have that before starting to remove components. When replacing the wiring, it might seem a bit tight. I had to try a couple different wire placements/paths before I settled on one that I felt was appropriate.

The ACDelco Gold 48AGM battery has been an excellent upgrade. It delivers strong, consistent starting power and performs reliably in all conditions. The AGM design is a big plus—maintenance-free, spill-proof, and built to handle modern vehicles with higher electrical demands. Installation was straightforward, and the battery feels solid and well-constructed. It holds a charge extremely well and provides dependable performance whether for daily driving, short trips, or longer runs. You can tell this is a quality battery designed to last. The 36-month warranty adds extra confidence and makes this an even better value. If you’re looking for a dependable Group 48 AGM battery from a trusted brand, this one checks all the boxes. Strong performance, trusted name, and worth the investment. Highly recommended.

Works well until today ,accurate size and quality

I ordered two of these batteries for my 2019 GMC 2500 HD Duramax. They are the exact same ones that came with the truck originally. They were well packaged, I am satisfied with the price compared to other brands. I highly recommend these batteries for this and similar trucks. These batteries actually have 30 more cranking amps. 😃

Don't buy these. I purchased 2 in May and by Dec one was dead and refused to charge Tried calling the 800 acdelco line for warranty and they said send an email and we'll see may take several weeks to resolve Local stores that carry them refused warranty I need my truck now not in a few weeks So i figure im out $400. Had to go buy other batteries

Perfect!, Easy installation, fits my MDX well, starts without issue.

great service

Not bad but not What was expected

It fits my 2015 C class and works well so far