DIN (German battery code)
Traditional German 5-6 digit code summarising capacity and CCA. Example: 56519 ≈ 65 Ah / 540 CCA.
DIN is the traditional German coding for automotive batteries, using a 5-6 digit code that summarises capacity and CCA. The system comes from the pre-EN era when each country had its own standard; many German manufacturers (Varta, Bosch, Berga) still keep it on the label alongside the modern EN code. Modern catalogues (Varta, Bosch, Tudor) keep it next to the EN code and always publish the explicit Ah/CCA equivalence on the datasheet, so users do not need to decode it themselves. If you find a battery referenced only by DIN code, look in its product sheet for the EN equivalent or the explicit "Ah / CCA" pair — manufacturers always provide it.