I have an electrical problem with a customer vehicle. The electrical system operates with 30V. That is so much, that the batteries die again and again. I exchanged the regulators already several times, without considerable success. Does someone have an idea? Somewhat strange was noticeable to me. The generators have two cables at the regulator, a red and a brown one. The red one has 12 V at generator 1 and 24 V at generator 2. That’s clear. Unclearly for me is, why both brown cables haven’t 12 V. They come both from the control lamps in the instrument panel and I can’t explain me the 24V at Generator 2 !?