best battery for BMW

Choosing the best battery for BMW

Updated Wednesday Aug 02, 2017

Trying to find out what's the best battery for BMW? While OEM batteries sold at BMW dealerships are a perfect fit they are also ridiculously over priced. Plus BMWs model years 2002 and newer need the new battery to be registered making BMW replacement cost anywhere from $400-$600.

choosing the best aftermarket battery for bmwYou may be surprised but there are several aftermarket replacement batteries for BMW that work as well as the stock BMW battery as long as they are coded are registered correctly. You can install an aftermarket BMW battery, perform battery registration and coded it yourself. In this article, we will go over a list of the best aftermarket batteries for BMW. To register the new battery, you will need a scan tool such as Foxwell N510 for BMW. In the end, you can spend less by replacing a BMW battery yourself and registering it versus having the dealer replace your BMW battery.

In this article, we will provide a list of aftermarket replacement alternatives for BMW battery. Our recommendation is to match the specs with the stock battery as close as possible. If you need help learning with registration and coding, read our article on How to register and code new BMW battery. Don't skip battery registration on BMW otherwise, your new battery will only last one to two years max. 

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1. OEM BMW Battery Size

The most common battery on BMW vehicles including 3, 5, 7 series, X3 and X5 are BCI Group 94 49 H8 batteries. These batteries have the nearly same dimensions and are interchangeable. 

Group Length Width Height
Group 49 Battery / H8 13.9" 6.9" 7.6"
Group 94R Battery  12.4" 6.9" 7.5"

BMW battery specs vary between models. If you know the part number, you can find the specs below. 

  • Capacity: 65-110 Ahr
  • Cold Cranking Amps (CCA): 540-900 A
  • Cranking Amps (CA): 600-900 A
  • Reverse Capacity: 120-160 
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2. Best battery for BMW 

Below is a list of some of the best batteries for BMWs. Group 49 / H8 batteries have the same physical dimensions and fit most MW including 1,3, 5, 7, X1, X3, X7 series. Most importantly make sure to match the battery type (lead acid or AGM) and ampere hour rating if you want to avoid coding. Cold Cranking Amp and Reserve capacity are also important. Higher is usually better, but not always. Bottom line is that you want a battery with the specs as close to the OEM BMW battery. 

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3. Excide Edge 94R AGM Sealed Automotive Battery

excide same as oem bmw battery size
  • Cranking Amps (CA): 960A
  • Cold CA: 800A
  • Capacity: 80 Ah
  • Reserve Capacity (RC): 140
  • Battery Type: AGM
  • Dimensions:
    • Length: 12.38"
    • Height: 7.5"
    • Width: 6.88
  • Applications: 1-series, 3-series, 5-series, 7-series, X1 X3 X5
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4. ACDelco 94R AGM Battery

best battery for bmw 1 3 5 7 series x1 x3 x5
  • Cold Cranking Amps: 800 CCA
  • Capacity: 80Ah
  • Reserve Capacity (RC): 140 RC
  • Battery Type: AGM
  • Applications: E53 E60 E61 E63 E64 E65 E66 E70 E71 E82 E83 E84 E85 E86 E88 E89 E90 E91 E92 F01 F02 F06 F10 F13 F15 F20 F22 F25 F26 F60 F31 F85
  • Part number: 88864542
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5. XS Power D4900 AGM Battery 

replacement battery for bmw
  • Cold CA: 1075A 
  • Capacity: 80 Ah
  • Reserve Capacity (RC): 168 min
  • Battery Type: AGM
  • Dimensions:
    • Length: 13.9"
    • Height: 7.6"
    • Width: 6.88
  • Applications: 1-series, 3-series, 5-series, 7-series, X1 X3 X5
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6. AutoCraft Gold 94R Battery - Advance Auto

autocraft battery for bmw battery replacement oem alternative


  • Cranking Amps: 950A
  • Cold CA: 800 A 
  • Capacity: 80 Ah
  • Reserve Capacity (RC): 130 min
  • Battery Type: Lead Acid
  • Dimensions:
    • Length: 12 7/16 in
    • Height: 7 1/2 in
    • Width: 6 15/16 in
  • Applications: 1-series, 3-series, 5-series, 7-series, X1 X3 X5
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7. Autocraft Platinum Group Size H8 

alternative battery for bmw
  • Cranking Amps: 1000 A
  • Cold CA: 900 A 
  • Capacity: ?? Ah
  • Reserve Capacity (RC): 160 min
  • Battery Type: AGM
  • Dimensions:
    • Length: 13.94 in
    • Height: 7.5 in
    • Width: 6.94 in
  • Applications: 328i, 323i, 335i, 325i, 550i. 535i, 540i
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8. OEM BMW Battery

OEM BMW batteries are the perfect choice if you are looking to replace the battery on your BMW. The only problem is that they often are overpriced. Luckily you can now buy cheap OEM BMW batteries online. 

Check Price: OEM BMW Battery

Below you will find a list of OEM BMW batteries, part numbers, and specifications. 

OEM BMW Battery Specs

By part number:

  • PN: 61 21 6 919 342 OR 61 21 6 924 022 OR 118668
    • CA: 700 A
    • CCA 900 A
    • Reserve Capacity: 160
    • Capacity: 90Ah
    • Type: AGM
  • PN: 61 21 8 381 765 / 61 21 8 381 764
    • CA 720A
    • CCA 720 
    • Capacity 90 Ah
  • PN: 61 21 8 381 749 729905 - 10
    • CA 640 A
    • CCA 640 A 
    • RC 140
    • Capacity 80 Ah
  • PN 61 21 7 566 302 / 61 21 8 381 726
    • CA 570 A
    • CCA 570
    • RC 120
    • Capacity 70 Ah
  • PN: 61 21 8 381 720 
    • CA: 540 A
    • CCA 600 CA
    • RC: 110 
    • Capacity: 65Ah
  • PN: 61 21 6 946 33
    • CA 720 A
    • CCA 720 A
    • RC:  160
    • Capacity: 90Ah
  • PN: 61 21 7 583 642
    • CA: 720 A
    • CCA: 720A
    • RC: 160
    • Capacity: 90 Ah 
  • PN: 61 21 7 607 983 / 61 21 7 615 853
    • CA: 900A
    • CCA: 900A
    • RC:160
    • Capacity: 90Ah
  • PN: 61 21 8 381 749 
    • CA: 640 A
    • CCA: 640 A
    • RC: 140
    • Capacity: 80Ah
  • PN: 61 21 7 586 932 / 61 21 7 586 975
    • CA: 720 A
    • CCA: 720 A
    • RC: 160
    • Capacity: 90 Ah
    • Type: Lead Acid

Tips for choosing the best battery for your BMW

In order to choose the best battery for BMW, you need to know a few key facts. BMWs 2002 and newer require that the new battery be registered so that your car knows how to charge it. If you choose a battery that has the same specs as the original battery you can get away with only the battery registration. If you choose a battery that is the same physical size but has different specs, you will need to perform coding and also battery registration. 

If the old battery is still on your car, then look them up. If you have an OEM BMW battery with black casing, it is an AGM battery. If you have a battery with white casing  The ampere hour is printed as a number and Ah behind, like this 90Ah.   

Now you are probably aren't only trying to find the best BMW battery, but also the cheapest option. Let's look at some aftermarket batteries for BMW. 

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9. What's next after you buy BMW battery? 

after you buy bmw batteryThe first step is to install the new BMW battery which is very easy and straight forward procedure. If you need help with replacing the battery, read this awesome article on How to replace a BMW battery.

Next, after you install the battery you will need to register it and maybe code it too. In other words, if you changed from AGM battery type to lead acid battery or the capacity from 90 Ahr to 110 Ahr, you will need to perform coding as well. This tells your BMW how to charge the new battery. If you skip this step your BMW will overcharge the new battery shortening its life. 


Regardless of whether you buy an OEM BMW battery or an aftermarket battery, don't skip the BMW battery registration process. You will also need to perform coding if you change the battery type (from lead acid to AGM) or the battery capacity (for example from 110 Ah to 90Ah). You can perform both of these processes yourself if you have a BMW scan tool

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10. Conclusion

To say that the OEM BMW battery is "absolutely" the best battery for Bimmers is an exaggeration unless you don't mind paying $500+ for a car battery. You can always install an aftermarket battery that's a lot cheaper than getting the battery replaced at the BMW dealer have the dealer or an indy BMW shop program the battery. Most BMW shops will charge 0.5 hours labor to register the new battery. Or if your looking to do it yourself and save  some money, check out the BMW Battery Registration Coding DIY Procedure article

To find the best BMW battery for your car, you need to look at your existing assuming it is the factory BMW battery. Match those specs whenever possible. If the OEM battery has been removed you need to call your dealer and ask about two important specs: 

  • What is the capacity of the battery in my BMW?  
    • 60 70 75 80 90 100 110 Ah
  • What battery type does my BMW use?
    • Lead Acid or AGM
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