56638 Battery — DIN66, 566.38
The 56638 (DIN66) is the entry-level DIN battery — the most common European-specification battery for compact-to-mid passenger vehicles. At 66Ah and 540 CCA, it serves the same market segment as the JIS 65D26 but with European standard dimensions, B13 bottom rail hold-down, and DIN post terminals.
Quick Reference
| Parameter | Specification |
|---|---|
| Model | 56638 |
| Also Known As | DIN66, 566.38 |
| Standard | DIN (Deutsches Institut fur Normung) |
| Battery Type | SLI (Starting, Lighting, Ignition) |
| Nominal Voltage | 12 V |
| Capacity (C20) | 66 Ah |
| CCA Rating | 540 A (SAE) |
| Dimensions (LxWxH) | 278 x 175 x 175-190 mm |
| Terminal Type | Standard DIN post |
| Polarity | Left Negative (-), Right Positive (+) — DIN type [0] |
| Hold-Down | B13 (bottom rail) |
| Approximate Weight | 15-18 kg |
| Chengguang SKU | CG-DIN-56638 |
Specification Ranges
Values shown are typical ranges. Exact specifications vary by production batch. Contact Chengguang for your order's technical data sheet. CCA values marked "TBD" are pending factory verification.
How to Identify This Battery
Standard DIN case: 278 mm long x 175 mm wide. B13 bottom rail hold-down — a lip at the base of the battery that locks into the vehicle's battery tray. DIN standard post terminals (O19.5mm positive, O17.9mm negative). Label shows '56638', 'DIN66', or '566.38'. Shorter and wider than JIS equivalents.
Vehicle Applications
European compact-to-mid passenger vehicles: 1.4L-2.0L gasoline and diesel. Most common DIN battery size by volume.
Compatible Vehicles
- Volkswagen: Golf (all gen), Polo, Jetta/Bora
- Opel/Vauxhall: Corsa, Astra
- Peugeot: 208, 308, 2008
- Renault: Clio, Megane, Captur
- Fiat: Punto, Tipo, 500L
- Ford: Fiesta, Focus (European spec)
- SEAT: Leon, Ibiza
- Skoda: Fabia, Octavia (some)
Fitment Verification
Vehicle fitment is a general guide. Always verify tray dimensions, B13 bottom rail fit, terminal position, and DIN post diameter. DIN batteries use B13 (bottom rail lip) hold-down — NOT compatible with JIS B00 (top frame) without an adapter.
Regional Markets
Europe (core market — highest volume DIN size), Middle East (European vehicle segment), Africa (West/North — former European colonies, especially Francophone Africa), South America (European vehicle segment)
Manufacturing at Chengguang
DIN-standard automated line. Ca-Ca grid alloy. B13 bottom rail molded into case during injection molding. Output: 1,500-2,500 units/day. IATF 16949 certified with full traceability.
Testing & Quality Control
100%: CCA (SAE J537, >540A), OCV (>12.60V), visual (B13 rail integrity, terminal alignment). Batch: C20 (IEC 60095-1), RC (SAE J537), charge acceptance (EN 50342-1), vibration (EN 50342-1).
Related Battery Models
- DIN70/57117 — next capacity tier (70Ah, same dimensions likely)
- DIN72/57219 — next tier up (72Ah)
- 65D26 — JIS equivalent segment (260 mm, B00 hold-down — verify fit)
- 55D23 — JIS compact-mid (232 mm, different standard)
Equivalent Models & Cross-Reference
| Model | Standard | Relationship | Confidence |
|---|---|---|---|
| DIN66 | DIN | Alias / Same case | :material-check: High |
| 566.38 | DIN | Alias / Same case | :material-check: High |
DIN vs JIS — Not Interchangeable
DIN batteries use B13 bottom rail hold-down and standard post terminals. JIS batteries use B00 top frame and T1 posts. Even when dimensions are similar, the hold-down mechanism and terminal type differ. Always verify your vehicle's battery mounting system.
OEM & Private Label Availability
Available for OEM manufacturing under your brand from Chengguang Power Tech:
- IATF 16949:2016 certified manufacturing in Jinzhou, Hebei, China
- Custom label (including European regulatory markings), case color, packaging
- Full batch traceability — raw material lot to shipping container
- 100% pre-shipment CCA and capacity testing with CoA
- DG-compliant export packaging (UN 2794 / Class 8)
- CE marking documentation for EU import
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Frequently Asked Questions
DIN66 vs 65D26 — which should I buy?
Depends on your vehicle. European cars use DIN (B13 hold-down, DIN posts). Japanese cars use JIS (B00 clamp, T1 posts). They are NOT directly interchangeable. Check your vehicle manual or measure your battery tray.
What vehicles use DIN66?
VW Golf, Opel Astra, Peugeot 308, Renault Megane — compact European cars. The most common European battery size.
Can I use a DIN66 in a Toyota?
Only if your Toyota is a European-market model with a factory DIN battery tray. Most Asian-market Toyotas use JIS batteries (B00 hold-down). Verify your tray type.
What is the difference between DIN and JIS hold-down?
DIN uses B13 — a lip at the battery base that slides under a rail in the tray. JIS uses B00 — a metal frame that clamps across the battery top. They are completely different mounting systems.
Last verified: 2026-08-11 | Source: Chengguang Power Tech Co., Ltd. | SKU: CG-DIN-56638 | Manufactured in Jinzhou, Hebei, China
Author: Chengguang Power Tech Technical Team | Reviewed: IATF 16949 Quality Department | Technical Reference