48-volt concern after an auxiliary battery was replaced

Identify which battery was replaced and what was fitted. A generic invoice saying battery can leave important ambiguity on a vehicle with several power systems. The workshop needs the replacement and original warning history.

What to tell us

  • Battery identity.
  • Replacement specification.
  • Before-and-after messages.

Before arranging work

Identify the exact power system before comparing repair advice. An auxiliary battery, mild-hybrid system and traction battery are not interchangeable descriptions. Do not open battery assemblies or improvise electrical tests to settle an identification question.

Ask AXION about this fault. Send the vehicle details and the information above. Please agree an appointment or postal assessment with us before travelling or sending a module.

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