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retrofit dc

  1. Is retrofit of combo DC charging really that difficult?

    BMW i3
    I’ve seen a few mentions of retrofitting the combined AC/DC socket to the older i3, but they immediately get replies of ‘too expensive’ ‘not possible’, but no thorough technical explanation of what’s involved. I’ve got two i3s, one has DC (and Rex), the other doesn’t. Ignoring the Rex cabling...