Input cables thickness and quality

Because an overall design of EVSE or charging cable does not depend on the final market, but input plugs vary from region to region, there is a weak point here. EVSE manufacturers must install locally produced input side cable and plug.

Thus – the quality of it may vary, depending on the source of cables.
Here we compare good (Yazaki for Mitsubishi) vs bad (Delphi for BMW) quality input cable and plug.
Mitsubishi cord uses a rubber-covered, thick cable, with 3×2.5mm2 wires and 16A certified Schuko plug – and loads it with 9,4A
BMW cord is thin, 3×1.5mm2 wires (40% thinner than Mitsubishi), PE-covered (cracks easily in winter) with bad quality, moulded plug (no amperage is shown) – and loads it with 11,4A ( 21% more, than Mitsubishi). The overall current trough diameter is twice as much in BMW than in Mitsubishi!
The first photo shows a thickness comparison between Mitsubishi Outlander PHEV genuine charging cable and BMW i3, i8 genuine charging cable.
The second photo shows the crack of insulation in the BMW cable, caused by winter usage.

Conclusion: always focus not only on charger/EVSE itself but on the quality and insulation type of your cables and plugs.

One reply on “Input cables thickness and quality”

Is that original BMW charger? Why then is it made by Delphi? It would be more logical to have it from Siemens or Bosch.

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