BCI-31 Battery — BCI Marine / RV / heavy-duty commercial | Dingwei Battery
The BCI-31 is a BCI marine / rv / heavy-duty commercial battery with a nominal 12V and 100 Ah rating. It is available for OEM and private-label supply, with specifications confirmed against BCI Group 31 (SAE J537).
Direct answer: The BCI-31 is a BCI starting battery for marine / rv / heavy-duty commercial, supplied as a Group 31 case (330 × 173 × 240 mm) with a nominal 12V and 100 Ah rating. It is listed as a compatible reference — not an OEM-confirmed fitment — so confirm terminal type, polarity and tray dimensions before ordering. CCA is 900 (reference, SAE J537 (-18°C) reference).
What is a BCI-31 battery?
The BCI-31 is a BCI automotive battery used for marine / rv / heavy-duty commercial. Its reference case is Group 31, and it is supplied under the BCI Group 31 (SAE J537) convention.
Common aliases for this reference include Group 31.
Quick specification
| Field | Value |
|---|---|
| Model | BCI-31 |
| Standard | BCI (BCI Group 31 (SAE J537)) |
| Voltage | 12 V |
| Capacity (C20) | 100 Ah |
| CCA | 900 CCA (reference) — SAE J537 (-18°C) reference |
| Dimensions (L × W × H) | 330 × 173 × 240 mm |
| Weight | 28 kg |
| Technology | Maintenance-free |
| Terminal | Confirm on inquiry |
| Polarity | Confirm on inquiry |
| Reserve capacity (RC) | Confirm on inquiry |
| Indicative minimum unit price | From US$80 |
CCA is shown as a reference value. reference value, confirm with manufacturer before using this value in a product specification.
Dimensions & terminal
Listed dimensions are 330 × 173 × 240 mm. Terminal type and polarity are not published for this reference; confirm them on inquiry before finalising the specification.
Applications & vehicle fitment
Application reference: Marine / RV / heavy-duty commercial. Exact vehicle fitment is a cross-reference decision — always confirm against the vehicle or fleet requirement and the manufacturer before ordering.
Fitment confidence: UNVERIFIED
Not enough evidence — compatible reference only, not OEM confirmation.
Compatible reference only — not OEM confirmation. Always verify against the vehicle, terminal layout and electrical configuration before ordering.
How fitment confidence is rated
- HIGH Multiple credible sources or manufacturer documentation.
- MEDIUM Credible independent source with matching technical parameters.
- LOW Limited third-party reference.
- UNVERIFIED Not enough evidence — compatible reference only, not OEM confirmation.
Equivalent / cross-reference
Battery equivalence depends on the standard family, case dimensions and terminal layout. JIS, DIN/EN and BCI references are not automatically interchangeable even when physical dimensions are similar.
No verified cross-reference table is published for this page. Confirm the equivalent model for your market with the manufacturer.
Related BCI models
Other BCI references in the current model set.
OEM availability & private label
Dingwei Battery provides OEM and private-label battery programs manufactured by Chengguang Power Tech Co., Ltd. (founded 2002). The BCI-31 is available for OEM and private-label supply. Branding, sampling, packaging and final specifications are confirmed on inquiry.
OEM programs → · Private-label programs → · Browse car batteries → · Request OEM Quote →
FAQ
What is a BCI-31 battery?
The BCI-31 is a BCI starting battery for marine / rv / heavy-duty commercial. It uses the Group 31 case reference with a nominal 12V and 100 Ah rating — a common fitment in its target-market vehicles.
What is the CCA of the BCI-31?
The listed value is 900 CCA, measured to the SAE J537 (-18°C) reference. CCA is test-method dependent — a JIS (−15°C) number is not directly comparable to an EN/SAE (−18°C) number, so confirm the basis before comparing quotes.
Can I order the BCI-31 as OEM or private label?
Yes. OEM means you define the specification and own the design and brand; private label applies your identity to this proven platform. Both routes are available, with branding, sampling and packaging confirmed on inquiry. Choosing OEM over an off-the-shelf model gives you a product no competitor can simply buy from the same shelf.
What are the dimensions of the BCI-31?
Listed dimensions are 330 × 173 × 240 mm. Dimensions decide fitment — the battery must clear the tray, hold-down and hood, and a difference of a few millimetres is enough to stop it seating properly. Terminal type and polarity are not published here and must be confirmed against the vehicle.
What standard does the BCI-31 use?
It is referenced to BCI Group 31 (SAE J537) (BCI). If your market uses a different standard family, confirm the equivalent case size — JIS, DIN/EN and BCI batteries are not automatically interchangeable, and ordering the wrong family means the battery will not fit the tray even if the Ah rating looks right.
Sources & verification
- Source: Industry reference
- Evidence level: LEVEL 3 — credible industry source
- Reference: BCI Group 31 size chart + industry reference
- Verification date: 2026-09-11
This is a reference page. Fields marked “confirm on inquiry” are intentionally not published rather than estimated.
Confirm the BCI-31 specification
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