Report KD 658 has been replaced by report KD 382. In both reports an alternative rotor for the original VIRYA-4.2 rotor is described. The advantage of the rotor described in report KD 382 is that it can be used for 48 V battery charging if the generator is rectified in star and for 24 V battery charging if the generator is rectified in delta or in star. A new chapter 9 has been added to KD 382 in which it has been investigated if star connection is possible for 24 V battery charging. It is possible but star connection for 24 V battery charging is only advised for low wind speeds.