I am hoping someone here has had the same problem I am having.

I have a Huskee Garden Tractor with a 26HP briggs, 54"deck that I can't isolate the issue on. This problem is hit and miss but at times when the PTO is engaged it will disengage on it's own (switch is staying pulled out) I can turn the PTO off and back on and continue mowing with no problem, other times it will disengage and continue to do so when turned off and back on, other times it never disengages and mows just fine. The problem comes and goes, it has also started to not charge the battery when the pto is engaged, I can put a fresh charge on the battery and it will mow until the battery drains again and I have to repeat the process. I can run the tractor without the pto engaged and it will not drain the battery but as soon I engage the PTO it's about 10-15 minutes and the battery light comes on. Any thoughts on where to start my trouble shooting?