BMW Battery Repair Service
BMW 12V Lithium Battery Repair Service
Check Your OEM Part Number
Common OEM numbers for this repair service
- 61 21 5 B3F 325
- 61 21 5 A8D 7E0
- 61 21 5 A4A F23
- 61 21 5 A46 EA1
Don't see your OEM number? Send us a photo of your battery label or VIN — we'll confirm compatibility. Contact us
Professional mail-in repair for BMW 12V lithium batteries. Send your OEM part number or VIN and we’ll confirm compatibility before shipping.
Repair service only — ship your original battery to us for diagnosis, repair, testing, and return.
Choose Your BMW Battery System
- Nationwide USA mail-in repair
- 2–3 business day turnaround
- OEM diagnostics
- Tested before return
Questions before ordering?
Contact Us
Service check
Is this the right repair service?
This is a BMW 12V low-voltage lithium battery repair service — not a high-voltage PHEV or EV traction battery repair.
This service covers
- BMW 12V low-voltage lithium starter / auxiliary battery repair
- OEM Li-ion 12V battery modules on BMW G-Series vehicles
- 12V battery warning messages, charging and communication faults
This service does not cover
- Full high-voltage PHEV traction battery packs
- Full EV traction battery repair
- Non-BMW battery systems
Service details
Compatibility
BMW 12V Compatible Models
This service covers the BMW 12V lithium battery systems below.
Compatible Models
- BMW 3 Series G20 (2019–2025 | LCI 2023–2026)
- BMW 330e G20 (2019–2025 | LCI 2023–2026)
- BMW 4 Series G22 / G23 / G26 (2021–2024)
- BMW 5 Series G30 / G31 (2018–2024)
- BMW 530e G30 (2018–2024)
- BMW 6 Series GT G32 (2018–2024)
Common symptoms & compatibility check
Your BMW battery may be repairable if you are seeing issues like these.
- 12V lithium battery failure
- Battery warning messages
- Start/stop faults
- Charging faults
- Voltage imbalance
- Communication faults
Send us your OEM part number, VIN, or a photo of the battery label and we'll confirm compatibility before shipping.
Process
How Our BMW 12V Repair Works
Ship your original battery
Securely send your original BMW 12V battery to our repair center.
Diagnose, repair, and test
Full OEM diagnostics, module-level repair, and testing before it leaves us.
Return your original battery
Your repaired battery ships back to you nationwide.
Most repairs are completed within 2–3 business days after delivery.
Contact
Confirm Battery Compatibility
Send us your OEM part number, VIN, or battery label photo and we’ll confirm compatibility before shipping.
Support
Shipping, Repair Process & FAQ
How do I ship my battery?
Ship your original BMW 12V lithium battery to our repair center. Once received, it is inspected, repaired if eligible, and returned to you.
How long does the repair take?
Most repairs are completed within 2–3 business days after delivery.
How do I confirm my battery is compatible?
Confirm compatibility by OEM part number or VIN before shipping. Compare your part number against the supported OEM numbers shown in the hero above.
What if my battery cannot be repaired?
If a battery cannot be restored due to severe internal damage or corrosion, a refund is issued minus return shipping.
Are batteries tested after repair?
Yes. Each repaired battery is tested before being returned to ensure proper functionality.
Is this the right service for a high-voltage BMW battery?
No. This service covers BMW 12V low-voltage lithium batteries only — not high-voltage PHEV or EV traction battery packs.
Next Steps
Need Something Else?
Sell a battery or read the full BMW lithium battery repair guide before ordering.
Sell Your Battery
Have a Li-ion battery you no longer need? Send us the OEM number and photos for an offer.
Get an OfferBMW Repair Guide
Read our BMW lithium battery repair guide, including symptoms, OEM numbers, and repair options.
Read Guide