ok great, thanks for all the assistance grumpy, will do checks and report back, going off something else I read elsewhere in the forum, I HOPE I haven't wasted your time, if im not mistaken, it seems these charging capabilities are only to just maintain a battery to start mower and not so much as able to charge a run down battery, unless run for quite a while, I have only run for about 10 mins max thru this so far, maybe leave it running for half hour on high revs and see where battery voltage is then, but will still do tests suggested, right now in fact.