As an integrated manufacturer with development and production in Germany in accordance with ISO:9001, we offer comprehensive after-sales support for our products:

  • Vehicle-specific commissioning & validation (based on telemetry data)
  • Measurement of battery cells & general assessment *
  • Replacement of individual components and upgrades to the current development status **

Please fill in the following fields as detailed as possible & attach photos if required.
Further information in our Online manualand the Online database or gladly by telephone.

* free of charge as part of the 2-year warranty (statutory)
or our 5-year warranty (date of purchase from 01.03.20)
** subject to a charge, depending on component & version status
(Offer after inspection of the returned battery)

    First name*




    Phone number*



    Serial number* (engraved in the top of the lid)



    Invoice number
    Purchase date



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