I have a 93 Honda F2 and with the cold weather I like to start my bike periodically. This week I went out to start it and the battery was low. I did a quick charge on it just to start it. I let it idle for about 15 minutes then road it just up the road and back (maybe 1/4 mile) when I got back I shut it off let it sit maybe 5 minutes went to start it again.....battery dead. So i took out the battery took it inside and fully charged it. Checked it two days later and it was still fully charged so I know its not my battery.....or could it still be???? So i guess my ultimate question is......is the bike supposed to recharge while it idles or is this normal??????