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ACDelco Gold 49AGMHR (88866099) 36 Month Warranty High Reserve AGM BCI Group 49 Battery

  • Based on 111 reviews
Condition: New
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Availability: 12 left in stock
Fulfilled by Amazon

Arrives Friday, Sep 18
Order within 17 hours and 33 minutes
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Features

  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

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_of_direct_current


Battery Cell Composition: Lead-Acid, AGM


Item Weight: 55.6 pounds


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


Number Of Cells: 6


Unit Count: 1 Count


OEM Part Number: 88866099


Manufacturer: ACDelco


Compatible with Vehicle Type: Passenger Car


Voltage: 12 volts_of_direct_current


Number Of Cells: 6


Item Weight: 55.6 pounds


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


Battery Type: Lead-Acid, AGM


Brand Name: ACDelco


Manufacturer Part Number: 88866099


Unit Count: 1 Count


OEM Equivalent Part Number: 88866099


Model Number: 49AGMHR


Manufacturer: ACDelco


UPC: 193468141146


Number of Items: 1


Included Components: Vehicle Battery


Item Type Name: 7 Yr Profess Platinum,7 Yr Profess Platinum


Manufacturer Warranty Description: 36 Month Free Replacement / Limited Warranty (Parts Only). Please seefor more details.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 18

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


  • Good replacement over OEM
Installed on a 15 CLS400 4-Matic. After every single light in the dash came on, every electric was acting up and the power steering stopped working I knew I had a bad battery. Replaced this and the accessories battery as well. Good as new and for half the price from what the dealer wanted for both. Been about a year since I installed and no issues. ... show more
Reviewed in the United States on August 23, 2026 by Carlos

  • OEM Quality +
OEM Quality with cranking that is solidly dependable. Having used AC Delco for decades… I was pleasantly surprised when I purchased and installed this specific battery in my 2017 BMW 430i XDrive. The unit was well packaged which is important as it weighs nearly 55 lbs. The mounting size and overall fit was truly OEM. I would heartily recommend this as I have had it in my Vehicle now for five months and it has performed flawlessly. Cold starting was effortless. ... show more
Reviewed in the United States on May 4, 2026 by DrScience

  • Doesn't last
Didn't even last 2 years. The battery dies if you don't start your car for a week. I had to jump it every time I want to drive my car. Don't recommend it..
Reviewed in the United States on June 5, 2026 by Amazon Customer

  • Was shocked this was real given the price.
The 49agm is one of those batteries you buy because your car demands it. The 49agmhr for the same price? As much as I hate giving money to the zon.. This was the best price anywhere for the real oem battery for my car.
Reviewed in the United States on April 30, 2026 by Phil W

  • OEM Replacement
Perfect fit on 2017 Chevy Colorado 2.8l diesel. Replaced my original 8yr old factory installed battery
Reviewed in the United States on May 23, 2026 by Devin

  • GREAT
Purchased this battery for my 2016 BMW M-Spec 328i. Exact fit to replace the original BMW-labled battery that came with the car. I kept the memory in my car before i disconnect the old battery, put this ACDelco in, programed it to my car so that the car can communicate with it properly and all is fine. My engine stop and go system works fine and everything else works great, put my battery analyzer on and it is reading great, when engine is off and when engine is on, also when load is applied, such as headlights, hazard lights, AC, radio etc. great product. If I get a life span of three and a half years or even three years, that would be great, would definitely purchase again. ... show more
Reviewed in the United States on November 17, 2023 by GOSLIN

  • Best price I found for this battery.
Diagnosed my battery to be failing and the need to replace was dire. Did some searching and although it's an expensive battery (I know lithium batteries are ridiculous), this was the most reasonable price I found. Sorta straight forward installation in a 2007 Mercedes S550, albeit a bit of work crawling into the trunk to R&R. Note: If things like comfort setting aren't working properly or your radio and climate control start shutting down sooner than expected, these are all signs of a failing battery. Note 2: Specifically on the 2007 S550, there are two batteries in the car. Check with someone/place that knows for sure for your vehicle. ... show more
Reviewed in the United States on June 19, 2023 by Sterling

  • Reliable and Powerful Battery for Porsche Macan
I recently purchased the ACDelco Gold 49AGMHR battery for my Porsche Macan, and I couldn’t be more satisfied. The installation was straightforward, and the battery fit perfectly. It provides excellent starting power, and I noticed an immediate improvement in the car’s overall performance. The 36-month warranty adds peace of mind, knowing that I’m covered for an extended period. ACDelco’s reputation for quality is well-deserved, and this battery lives up to that standard. Highly recommended for anyone needing a reliable and powerful battery for their vehicle. ... show more
Reviewed in the United States on May 31, 2024 by Carlos A. Then

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