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ACDelco

ACDelco Gold 49AGM (88864539) 36 Month Warranty AGM BCI Group 49 Battery

  • Based on 722 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Sep 10
Order within 13 hours and 17 minutes
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Features

  • High density negative paste, improves performance and increases battery life
  • Enhanced life alloy/Silver Calcium stamped alloy increases cycle life and improves performance
  • Calcium Lead positive grid, maximizes conductivity and allows for low resistance
  • Robust Envelope Separator with puncture-resistant back, allows for increased acid circulation and prevents shorts. Improved acid circulation, helps the battery to remain cool, and extend battery life.
  • Vent cap design that resists acid leakage
  • Precision manufactured ribbed case that is 100% pressure tested, helps avoid future leaks and adds strength and rigidity
  • 100% Electrical short tested to minimize early failures
  • Meticulously tested to be free of manufacturing defects in materials and craftsmanship

Description

Certainty starts with GM Genuine Parts and ACDelco. It builds on a legacy of innovation and quality that keeps pushing us forward. More and more vehicles have complex electrical systems and fuel savings modes such as Start/Stop that rely on battery power to help enable performance. Some vehicles integrate secondary or auxiliary batteries as a part of this complex electrical system serving multiple functions. ACDelco AGM (Absorbent Glass Mat) and AGM Auxiliary batteries are designed for vehicles with these increased electrical demands. ACDelco Gold parts are high-quality OE alternatives for GM vehicles and more. ACDelco Silver parts offer a high-quality value option for most makes and models. Scroll or click to learn more. ACDelco Gold Series Batteries meet all industry requirements and most OE specifications. ACDelco Gold & Silver Series Batteries are offered for GM vehicles and most other makes and models. ACDelco AGM Auxiliary Batteries support vehicles with greater electrical demands such as Stop/Start. ACDelco Silver Series Batteries are a high-quality value option offering durable performance. Along with autos, ACDelco AGM Batteries are available for marine, off-road and heavy-duty needs. How is an AGM battery different than a conventional battery? An AGM battery uses a fiberglass mat to absorb the electrolyte that’s essential for energy storage and delivery. A conventional “flooded” battery contains a liquid electrolyte. The AGM design makes the battery spill-proof and maintenance-free. What are the benefits of an AGM battery? An AGM battery’s maintenance-free design makes it spill-proof and resistant to vibrations. It also offers up to twice the life of conventional flooded batteries, along with more power and Cold Cranking Amps than conventional flooded batteries. Do I have to replace an AGM battery with another? Yes. If the original-equipment battery was an AGM battery, it’s important to replace it with another. That also goes for “aux” batteries in vehicles with Start/Stop technology and other features with unique electrical demands. What is an “aux” battery? Some vehicles use an auxiliary battery as a part of a more complex electrical system with increased demands. Typically, these “aux” batteries are used in vehicles with Start/Stop technology as well as hybrid vehicles and battery-electric vehicles. Can I use an AGM battery in a vehicle that did not originally come with one? In most cases, the answer is yes. Most modern vehicles can accommodate an AGM battery as a direct replacement. Some vehicles, however, may have compatibility issues when it comes to the charging and voltage needs for an AGM battery.

Brand: ACDelco


Vehicle Service Type: Passenger Car


Voltage: 12 volts


Battery Cell Composition: Silver-Calcium


Item Weight: 35.2 pounds


Product Dimensions: 6.9"D x 13.9"W x 7.5"H


Number Of Cells: 6


Terminal: Marine Terminal


Unit Count: 1 Count


OEM Part Number: 88864539


Compatible with Vehicle Type: Passenger Car


Voltage: 12 volts


Number Of Cells: 6


Terminal: Marine Terminal


Automotive Fit Type: Vehicle Specific Fit


Item Weight: 35.2 pounds


Item Dimensions D x W x H: 6.9"D x 13.9"W x 7.5"H


Battery Type: Silver-Calcium


Brand Name: ACDelco


Manufacturer Part Number: 88864539


Unit Count: 1 Count


OEM Equivalent Part Number: 88864539


Model Number: 49AGM


Manufacturer: ACDelco


UPC: 707773903995


Global Trade Identification Number: 95


Number of Items: 1


Included Components: Battery


Item Type Name: Battery Asm


Manufacturer Warranty Description: 36 Month Free Replacement / Limited Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Perfect fit for a 2001 Mercedes CLK55
Perfect fit for a 2001 Mercedes CLK55. Cranks the motor noticeably quicker than the old one. I'm gone for a few weeks at a time and I read that AGM batteries lose less charge when sitting unused. It came well protected a heavy foam padding on the bottom of the box. The shipping box was heavy cardboard. Jan 2019- Battery is still going strong. No issues with the battery so far. I notice that Amazon now states that this battery won't fit my car. I wonder what's going on. I notice a Delphi battery of the same group size is okay for my car. The physical size of the AC battery fits perfectly into the battery holding bay. Feb 3, 2019. Battery is holding up well. With a battery tester it shows the SOH (State of Health) at 90%. Not bad. During the first couple of years I was always gone for most of the month. The battery basically received a charge once a month. May 11,2011: The battery has been holding up well. I check it will a battery tester maybe every couple of months and after using a trickle charger and then running the car for a day the SOH can go over 95%. I use a trickle charger on it for a couple of days every few months. This is easily the longest battery I've ever had. The one thing different I do now is I use a Ctek battery charger to give it a day or two of trickle charging. Oct -2021- It's not reaching maximum voltage now when I trickle charge it like it used to. The state of health (SOH) measurement with a battery tester isn't going about 82%. The battery could be reaching the end of its life. I'm going to try a longer extended time with the trickle charger to see if it can get back to the max voltage and SOH numbers. ... show more
Reviewed in the United States on August 1, 2015 by Rhaspun
    • Shipping is kinda long
I recently purchased the AC Delco Gold 49AGM 36 Month Warranty AGM BCI Group 49 Battery as a replacement for the battery in my BMW X5 2011, and overall I am satisfied with my purchase. The battery itself is of high quality and provides reliable performance for my vehicle. It has a 36-month warranty, which gives me peace of mind knowing that it is a durable and long-lasting option. One downside of my purchase was the shipping time. It took longer than expected for the battery to arrive, which was inconvenient. However, I was able to get it at a cheaper price than what I would have paid in-store, which was a positive. Installation of the battery was straightforward and easy, and it fit perfectly in my vehicle. Since installation, I have noticed a significant improvement in the performance of my car, which is a great result. Overall, despite the shipping delay, I am satisfied with my purchase of the AC Delco Gold 49AGM 36 Month Warranty AGM BCI Group 49 Battery. It is a high-quality and reliable option that has improved the performance of my car, and the 36-month warranty provides peace of mind. If you're looking for a replacement battery for your BMW X5 2011, I would recommend considering this option. ... show more
Reviewed in the United States on April 27, 2023 by K.M.
    • Don’t buy this if you ever want your car to start again
So I bought one of these, put it in the car. It lasted a few months so I got a replacement and Amazon gave me a replacement and it died in a few months so I asked for a refund because it was under warranty even the original one was under warranty except when you talk to the manufacturer like Amazon told you to they say Amazon is responsible for the warranty and refunds. They filed a claim with Amazon for a refund. They approved it, but Amazon did not. I had to buy another battery from Amazon which has been working well, but Amazon will not approve a refund on a product that the manufacturer approved a refund on because two of them were bad. Let’s see what they do, but I would not buy one of these or recommended to anyone. ... show more
Reviewed in the United States on January 14, 2025 by Joyceline kalu Soriano
    • So far, so good.
Being used in 2008 Mercedes Benz ML 320 CDI to replace 8-year old OEM 100 ah battery, made in Spain (the AC Delco is 95ah and apparently made in Detroit, but not sure from labels on it.) The AC D is a 900 CCA battery. Good price & free shipping; had to pay sales tax. The AC D arrived in excellent condition, on time, and was very well packed; heavy duty box with padding on all 4 sides, and top and bottom. Put it on a 2 ah charge, and it registered full in about 45 minutes. From the looks of it, it is a very recently made battery. Perfect fit. Came with a plug for one end of the AGM ventilation system. Replaced auxiliary battery at the same time. Bought it online at Batteries Plus for Twenty. Unless you know about it, that little battery is a pain the arse to replace. It has a simple pressure catch on the front seat passenger side of the long edge. If you aren't aware of it, you will have a *&^(%^% time removing it. Mercedes Benz seems to take great pains to complicate and obfuscate simple things, probably to assure dealerships a profitable repair business. I won't go into detail, except to say the location of this near 60 pound battery is absurd; red Loctite was put on both terminal bolts; and the positive terminal requires a triple jointed wrist to remove. Will never buy another M-B. Just tooooooo much unnecessary complexity. Germans need to practice KISS - Keep It Simple St,,,,, Car started up with vigor; was laboring before replacement. No problems with radio and other electronics. Five stars in the interim; will come back if there are problems, which I don't anticipate. ... show more
Reviewed in the United States on December 5, 2015 by MrEd
    • Excellent!
Fit perfectly in my 2017 BMW 230i. Easy install. OBD worked great to link this battery to the car.
Reviewed in the United States on May 5, 2026 by William D.
    • Volkswagen Complexity, Good Battery, Bad Shipping
I feel as though this battery and I got off on the wrong foot from the beginning. I had seen another review mention long shipping times, and they were 100% correct. This battery took 2 weeks to ship out to me, missing its first expected delivery date by almost a week. I was explained that this was not normal shipping with this item, but I have a feeling it is. When the battery finally got to me, it was exactly as the listing said, however, I would've preferred that the battery came with a replacement battery vent tube. I installed this battery in my 2008 Volkswagen Touareg. As with everything else in this vehicle, the installation was made difficult as the battery compartment for the SUV is under the driver's side seat. I had watched multiple videos on removal/installation and felt comfortable with changing the battery myself, as I typically DIY most of my vehicle repairs. Ultimately, the battery was installed, but if you have back/shoulder issues, I would not recommend you install this battery yourself in this particular vehicle. As previously mentioned, this battery has worked great since installed yesterday. My vehicle sat for 6 months and started right up. I feel confident with the 36 month warranty that if I have any issues, it will be resolved. As mentioned, the lack of an included vent tube did make my life a little more difficult, but that has since been resolved. Overall, a reliable battery, it just took forever to get to me. I do not believe the $50 savings between ordering a battery on Amazon and getting it in store is worth it considering how long you have to wait to get the battery, especially with the shipping times expected with most items nowadays. ... show more
Reviewed in the United States on August 21, 2023 by Tyler C
    • First battery took a very long time to arrive, Failed after 1 year, but was replaced under warranty
Battery was priced better than from other sellers but took a long time to arrive. Worked fine in my X3, even tough the size was slightly different than the original, the hold down was able to accommodate it. The bad news was that it started dying on me after 1 year of use. When I contacted regarding the issue, the seller honored the warranty without much trouble and replaced the defective battery for me at no cost. The replacement has been holding up now for over a year so hopefully all will be good moving forward, God willing! ... show more
Reviewed in the United States on July 19, 2025 by my2cents
    • Perfect Battery for 2013 Mercedes-Benz E350
This is the second time I purchased this battery, the first time was 4 years ago when I was in need for a new battery for the E350. This ACDelco is a perfect fit and the car starts just like you would expect from the actual Mercedes-Benz battery (for a fraction of the cost). As I do not drive this vehicle often, the battery often gets neglected, but it was completely reliable right up to the last day. This battery was very professionally packed and arrived faster than I expected. No damage, direct fit, and started the car and the rest is history. I have used it for a few weeks now (with a week of the car in storage and not being started at all), and when I went out to start it again, it started without any issues. If you are looking for a good battery replacement for your 2013 Mercedes-Benz E350, this one would be it. ... show more
Reviewed in the United States on January 15, 2024 by Tom

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