This is the addition of the weekend,Bier and Bratenl! A general recommendation to the alternator is to always have an overcapacity of approx. 20 A in comparison to the power consumption. With the multimeter – while the respective generator is charging the battery – measure the voltage drop between the battery plus pole + and the generator output B+. The voltage drop must in no case be my as 0.4 V, otherwise bad connections or a line error can be suspected. This check and if necessary fix! Errors in the charge control lamp current circuits. Function of the charge control lamp or the circuit by connecting Kl. D+ of the generator belonging to the charge control lamp circuit to check the mass. -Note! Charge control lamp lights up: The error lies in the voltage controller, or the light engine! -Note! Charge control lamp does not light up: The fuses in the charge control circuit or control cable to the charging circuit!