Car Battery for BMW 3 Series: Ceramic Composite
This car battery for the BMW 3 Series is specified around ceramic composite, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is a specification nobody had written down, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Car Battery |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Ceramic Composite |
| Typical use | Farm Use |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | RoHS |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- Titanium Alloy — preferred when weight matters more than rigidity
- Powder Coated Steel — selected when the part is exposed to weather and road salt
- Semi-Metallic Compound — selected when the part is exposed to weather and road salt
- ABS Plastic — specified where the part sits close to a heat source
- Chromed Steel — specified where the part sits close to a heat source

Processes available
- CNC machining
- sintering
- injection moulding
- powder coating
- precision stamping
- gravity casting
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for farm use. Related applications include coastal delivery, rural transport, heavy load hauling, mountain roads, security patrols.
Quality and packing
- In-line inspection with AQL 4.0 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the RoHS-compliant build instead of a fresh interpretation.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 5 days once you have seen the first piece.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







