In short, the 2007 BMW 550i uses a 12-volt lead-acid automotive battery, not the high-voltage traction pack. Most cars from this era rely on a conventional 12V battery around the 90 Ah range, with some configurations using an AGM (absorbed glass mat) battery to support heavier electrical loads.
Overview of the 12-volt battery in the 2007 550i
The 550i's electrical system is powered by a standard 12-volt battery that starts the engine and runs electronics. This is separate from any high-voltage components a hybrid or electric vehicle would have. For most 2007 models, this is a conventional flooded lead-acid battery, though certain configurations or replacements may use an AGM variant.
Flooded vs AGM: which one might be present
Most 2007 BMW 550i vehicles came with a conventional flooded 12V battery. Some cars with higher electrical demand or later replacements may use an AGM battery. Always check the battery label or your owner’s manual to confirm the exact type installed or required for replacement.
Where to find it and how to identify
The auxiliary battery is located in the trunk area under a floor panel or mat. The battery label on top will indicate whether it is flooded or AGM, along with its capacity (Ah) and cold-cranking amps (CCA).
What to buy and verify
Before purchasing a replacement, ensure you match the battery to the car’s specifications and physical fit. Consider these points when choosing a battery:
- 12-volt lead-acid battery (not a high-voltage pack).
- Capacity typically around 90–105 Ah (verify exact spec from the label or manual).
- Cold-cranking amps (CCA) in the range suitable for a V8 BMW of this era (commonly 700–900 CCA).
- Correct size/group to fit the trunk battery tray.
- AGM vs flooded type depending on equipment; if in doubt, use the OEM-recommended type.
Note: After replacing a BMW battery, some electronic modules may require coding or initialization to restore full functionality. A dealer or qualified technician can perform this if needed.
Summary
The 2007 BMW 550i uses a 12-volt lead-acid automotive battery, typically a conventional flooded unit around 90–105 Ah. An AGM battery may be used in certain configurations or replacements. Always verify the exact type and specs from the battery label or owner's manual, and be prepared for potential post-replacement coding to ensure full system compatibility.
What battery is used in the BMW 5 Series?
Suitable batteries for BMW 5 Series (Petrol) Passengers Vehicles
| AMARON PRO Automotive Battery - 600109087 (AAM-PR-600109087) | |
|---|---|
| Item Code | AAM-PR-600109087 |
| Model | 600109087 |
| Product Dimensions (LxBxH) (mm) | 353x175x190 |
| Voltage (V) | 12 |
Where is the car battery for a 2007 BMW 550i?
Here just grab this piece twist it to the side. And it comes right out i'm going to remove this bar use a 13 mm socket take this bolt. Out.
What size battery is in a 2007 BMW?
-The Group size H6, H7 and H8 are used during 2007-2016. Both flooded and AGM versions of these sizes are used. BEFORE purchasing a new battery, check the size and type of the battery in your car.
How much does it cost to replace a battery in a BMW 550i?
The average cost for a BMW 550i Battery Replacement is between $401 and $490. Labor costs are estimated between $106 and $155 while parts are priced between $295 and $334. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.