If you found 61217635788 while looking for a BMW replacement battery, you have likely come across a BMW part number rather than a regular battery model name.
BMW 61217635788, also written as 61 21 7 635 788, refers to a genuine BMW battery listed at 40Ah. BMW parts catalogs show this number for several BMW applications, including vehicles from the F30/F31 family. Some parts listings also associate it with the BMW i3 I01. BMWfans+1
Before buying a battery with this number, however, it is important to check your specific vehicle. BMW used different battery capacities and types across its models, and the correct replacement depends on the vehicle’s original configuration.
What Is BMW 61217635788?
61217635788 is a BMW battery part number. The same number can appear in several formats:
- 61217635788
- 61 21 7 635 788
- 61-21-7-635-788
- 61.21.7.635.788
BMW parts catalogs identify it as an original BMW battery, with a listed capacity of 40Ah. BMW’s catalog data also lists a weight of about 11.8 kg (26 lb). BBMWfans+1
The part is listed as a conventional BMW battery rather than being the same part number as BMW’s 90Ah or other larger-capacity batteries. For example, BMW parts listings show separate numbers for certain 90Ah batteries. BMW Parts Deal+1
BMW 61217635788 Battery Specifications
Here are the main specifications available from BMW parts listings:
| Specification | Details |
|---|---|
| BMW part number | 61217635788 |
| Alternate part number | 61 21 7 635 788 |
| Battery capacity | 40Ah |
| Manufacturer | BMW |
| Part type | Original BMW battery |
| Listed weight | About 11.8 kg / 26 lb |
| Production listing | From October 2012 |
| Battery application | Various BMW models |
BMW’s catalog identifies the part as a 40Ah battery, while replacement catalogs list compatible batteries with specifications such as 12V and 40Ah. One example listed against the OEM number is a 40Ah lead-acid battery with a 360A EN cold-cranking rating. BBMWfans+1
The specifications of an aftermarket replacement should not automatically be treated as the exact specifications of the original BMW battery. Always compare the replacement with the battery currently installed in your vehicle.
Which BMW Models Use 61217635788?
The part number appears in BMW catalogs for several vehicles.
BMW parts data lists applications within the 3 Series F30 range, including versions such as the 320i, 320i xDrive, 328d, 328d xDrive, 328i and 328i xDrive. Other BMW parts listings also show applications for F30/F31 vehicles. BMW Parts Deal+1
A BMW parts retailer also lists the part for a range of F30 models, including versions of the 316d, 318d, 318i, 320d, 320i, 325d, 328i, 330d, 330e, 330i, 335d and 340i. Bbaum-bmwshop24.de
Some suppliers also identify F31 and I01 i3 applications for this part number. Turner Motorsport+1
Example BMW applications
| BMW model family | Chassis | Compatibility information |
|---|---|---|
| BMW 3 Series | F30 | Listed for multiple variants |
| BMW 3 Series Touring | F31 | Listed by some BMW parts suppliers |
| BMW i3 | I01 | Listed by some suppliers |
| BMW 4 Series | Various | Verify by VIN before purchase |
The important point is that a model appearing in a parts catalog does not mean every vehicle of that model uses the same battery.
BMW parts databases themselves recommend checking the vehicle before ordering. BBMW Parts Deal
Is 61217635788 the Right Battery for Your BMW?
The safest way to answer this question is to compare the part number with your vehicle’s existing battery and BMW’s vehicle-specific parts information.
Check these details before purchasing:
- BMW model and model year
- Chassis code
- Engine
- Original battery capacity
- Battery type
- Physical size
- Terminal arrangement
- Vehicle equipment
- VIN-based parts information
This matters because BMW vehicles can use different battery capacities. For example, BMW parts listings for some F30 applications show both the 40Ah 61217635788 battery and larger 90Ah batteries with different part numbers. BMW Parts Deal+1
So, don’t choose a battery simply because the car is an F30 or because the seller says it is a BMW battery. Match the battery to the vehicle’s original specification.
61217635788 Replacement Batteries
If the original BMW battery is unavailable or you want a replacement from another manufacturer, several aftermarket products are listed as equivalents for 61 21 7 635 788.
Replacement catalogs currently show brands including:
- Bosch
- Exide
- Varta
- Banner
- Centra
- Yuasa
- Magneti Marelli
- Tudor
- Empex
- Speed
These manufacturers and their products are listed by aftermarket parts catalogs against the BMW OEM number. AAUTODOC+1
One example listed against the number is the SPEED SPEEL040, which is specified as a 12V, 40Ah lead-acid battery with a 360A EN cold-cranking rating. AAUTODOC
That does not mean every battery carrying a cross-reference to 61217635788 will have identical specifications. Check the individual product specifications before ordering.
Original BMW Battery vs Aftermarket Replacement
Both options can make sense, depending on what you need.
| Factor | Genuine BMW battery | Aftermarket replacement |
|---|---|---|
| BMW branding | Yes | No |
| BMW part number | 61217635788 | Usually listed as a cross-reference |
| Price | Usually higher | Often more choices |
| Brand options | BMW | Bosch, Exide, Varta and others |
| Fitment | Vehicle-specific | Must be checked carefully |
| Warranty | BMW/manufacturer terms | Depends on manufacturer/seller |
If maintaining the original BMW specification is your priority, the genuine part may be the simpler choice.
If you want more choice in price or brand, an aftermarket battery can be considered, but it should match the required specifications rather than simply sharing the same OEM reference.
How Much Does BMW 61217635788 Cost?
There isn’t one fixed worldwide price for 61217635788.
Current listings show different prices depending on the country, seller, stock status, taxes, shipping and whether you are buying the genuine BMW part or an aftermarket replacement.
For example, one genuine BMW parts listing currently shows an MSRP of $176.49, with a listed selling price of $145.53, although the same listing says the item is currently unavailable because of a manufacturer supply shortage. BBMW Parts Deal
Aftermarket catalogs show a much wider price range because they include several brands and battery specifications. AAUTODOC+1
For that reason, compare the specification and fitment, not just the lowest price.
How to Choose the Right Replacement for 61217635788
Before placing an order, work through this checklist.
1. Confirm the BMW part number
Check whether your existing battery or vehicle records show:
61217635788
or:
61 21 7 635 788
Different formatting does not necessarily mean it is a different part number.
2. Check the battery capacity
The BMW listing for 61217635788 identifies it as 40Ah. BBMWfans
Do not replace a larger-capacity battery with a 40Ah battery simply because the part looks similar.
3. Compare physical dimensions
The replacement needs to fit the battery compartment correctly.
Check:
- Length
- Width
- Height
- Base fixing
- Terminal position
- Positive and negative terminal arrangement
4. Check battery technology
Make sure the replacement technology matches what your BMW requires.
If the vehicle was designed for a particular battery type, installing a different type without following BMW’s replacement procedure can create electrical-system issues.
5. Confirm compatibility by VIN
This is one of the safest checks before ordering.
A BMW dealer or qualified parts supplier can use your VIN to identify the battery specification installed or required for your vehicle.
Does BMW Battery Replacement Need Registration?
Some BMW vehicles use an Intelligent Battery Sensor (IBS) and require battery replacement registration through the vehicle’s diagnostic system.
BMW parts information specifically notes that, on vehicles equipped with IBS, the replacement battery should be registered through the diagnostic system. It also notes that battery size and type are important to correct electrical-system operation. BBMW Parts Deal+1
This means installing a battery is not always the entire job.
If your BMW requires registration, the battery replacement procedure should include the appropriate registration process. If the replacement battery has a different capacity or type from the original, additional coding may also be required according to the vehicle’s configuration and BMW’s service procedure. BMW Parts Deal
If you are not familiar with BMW battery registration, having the work completed by a BMW technician or qualified independent BMW specialist is a sensible option.
Common Questions About 61217635788
What is BMW 61217635788?
BMW 61217635788 is an original BMW battery part number. It is also written as 61 21 7 635 788 and is listed as a 40Ah battery. bBMWfans+1
Is 61217635788 the same as 61 21 7 635 788?
Yes. These are different formatting styles for the same BMW part number:
61217635788 = 61 21 7 635 788
Parts catalogs and BMW retailers use both formats. BMW Canada Store+1
How many Ah is 61217635788?
The genuine BMW part is listed as 40Ah. BBMWfans+1
Which BMW models use 61217635788?
The part is listed for several BMW models, particularly vehicles in the F30/F31 3 Series family. Some parts catalogs also list the I01 BMW i3. Exact fitment depends on the vehicle configuration, so VIN verification is recommended. BBMWfans+2
Can I use an aftermarket battery instead of 61217635788?
Yes, aftermarket batteries are listed as equivalents for this BMW OEM number. Brands such as Bosch, Exide, Varta and others appear in replacement catalogs. The replacement still needs to match the required capacity, dimensions, technology and vehicle specification. AAUTODOC+1

Is 61217635788 a 12V battery?
Replacement catalogs cross-referenced to this BMW number include 12V batteries. For example, one listed replacement is a 12V 40Ah battery. AAUTODOC
Should I buy 61217635788 based only on my BMW model?
No. The same BMW model can have different battery specifications depending on its engine, equipment and production configuration. Check the original battery and confirm the part using the VIN before buying.
Final Verdict
BMW 61217635788 is a genuine BMW 40Ah battery part number, also written as 61 21 7 635 788. It appears in parts catalogs for several BMW applications, including various F30/F31 models and, in some listings, the I01 i3. BBMWfans+2
If you’re replacing this battery, don’t rely on the part number alone. Compare the original battery’s capacity, type, dimensions and terminal arrangement, and confirm the correct part using your BMW’s VIN.
For an aftermarket replacement, brands such as Bosch, Exide, Varta and Banner are among those listed against the OEM number. AAUTODOC+1
The best replacement is not necessarily the cheapest one. It is the battery that matches your BMW’s required specification and can be correctly registered after installation when the vehicle requires battery registration.
Conclusion
BMW 61217635788, also written as 61 21 7 635 788, is a genuine BMW battery part numberassociated with a 40Ah battery. It is listed for several BMW applications, including various F30 and F31 models, while some parts suppliers also list it for the I01 BMW i3.
If you need to replace this battery, the most important step is to confirm that 61217635788 matches your specific vehicle. Check your current battery, compare its capacity and physical specifications, and use your BMW VIN to confirm fitment before ordering.
You can choose a genuine BMW battery or an aftermarket replacement from a suitable manufacturer. If you choose an aftermarket option, make sure its capacity, dimensions, battery type and terminal layout meet your vehicle’s requirements.
For BMWs that require battery registration, the new battery should also be registered with the vehicle’s battery-management system after installation. Taking these steps can help you avoid buying the wrong battery and ensure that your replacement works properly with your BMW.
Frequently Asked Questions
What is BMW part number 61217635788?
61217635788 is a BMW battery part number. It is also written as 61 21 7 635 788 and is listed as a 40Ah BMW battery.
What is the capacity of 61217635788?
The genuine BMW battery associated with 61217635788 is listed with a capacity of 40Ah.
Is 61217635788 the same as 61 21 7 635 788?
Yes. 61217635788 and 61 21 7 635 788 refer to the same BMW part number. The difference is only the way the number is formatted.
Which BMW models use 61217635788?
The part number is listed for several BMW applications, including various F30 and F31 3 Series models. Some parts catalogs also list it for the BMW i3 I01. Exact compatibility depends on the vehicle’s engine, equipment and production configuration.
Can I replace 61217635788 with an aftermarket battery?
Yes. Several aftermarket battery manufacturers offer products cross-referenced to this BMW part number. However, the replacement should have the correct capacity, size, battery technology and terminal arrangement for your BMW.
How do I know if 61217635788 fits my BMW?
The safest method is to check your VIN with a BMW dealer or qualified parts supplier. You can also compare the part number and specifications printed on your existing battery with the replacement you are considering.
Is 61217635788 a 12V battery?
Aftermarket batteries listed as replacements for this OEM number include 12V, 40Ah batteries. Always check the specifications of the individual replacement before purchasing.
Does a BMW battery need to be registered after replacement?
Some BMW vehicles require the new battery to be registered through the vehicle’s diagnostic system after installation. Whether registration or additional coding is needed depends on the vehicle and the replacement battery specification.
What brands make replacements for 61217635788?
Replacement catalogs list several brands against this BMW OEM number, including Bosch, Exide, Varta and Banner. Availability and exact specifications vary by market.
How much does BMW 61217635788 cost?
The price varies based on the seller, country, availability and whether you choose a genuine BMW battery or an aftermarket replacement. Compare the specifications and warranty along with the price rather than choosing solely by cost.
