My 2001 TE570 has this on it. The fiche says the part number is a regulator on some pages and a rectifier on others. Which is it? Is it both? PN: 8000 79571 I know the bag says regulator on it in this photo but pg. 121 of my Husqvarna manual says it's a "voltage rectifier". Wondering if I can charge a small battery pack with this current setup or if I need to add a rectifier as well.