I converted my 89 XR600 electrical system to an AC/DC system using a ricky stator 200W dual output stator. I wired the system myself using a heavy duty AC regulator, and heavy duty DC regulator/rectifier. I have all the standard parts such as front/rear turn signals, horn, running lights, etc... Everything is controlled form a standard handlebar switch. I am having battery life issues. With my first batery, I put about 100 miles on the bike, riding it a couple times a week. After about 1 month of this, I noticed my battery was not holding a charge very well. If I turned on the key after 2 days or so, the running lights were dim, and the horn was weak. Once I fired up the bike, everything was back to normal as expected. Then after a couple more weeks of this, the battery became so bad that as soon as the bike stopped running, there was nothing left in the battery to run anything. It got to the point where even when the bike was running, it was having a hard time running the turn signals and brake light. And when I would try any of the DC items (brake light, horn, etc..) while the bike was running, the AC headlight would become very dim, almost like it was shorting out. I replaced the battery, and rode the bike 2 times. Then I stored it for about two weeks. After those two weeks the new battery was already dead. So now I've traced all the wiring and everything seems to look good. I installed a new temporary battery and checked to see if there was any current draw with the ignition switch off. My DMM wouldn't even register anything in the uA range. And once I turned on the running lights and used the signals and brakes, the current draw was exacty what I would expect. This was all done with the bike not running. I checked the stator, and there is around .4-.6 ohm resistance at each output. I checked for shorts between the coils and there were none. The main wire from the stator had about 7.5K resistance to ground. I checked both regulators and there were no shorts. I went through the handlebar switch and everything checked out perfect. Now I am not sure what to do. The only thing I have not checked is to see what the charging voltage is at the battery with the bike running. I need to put things back together again to check this. Is it possible that the batteries are overcharging and destroying them right away. Possibly causing internal damage to the battery which would cause them to discharge. The one thing I can not make any sense of is when the battery becomes very poor, trying to pull power from the DC side is causing my AC side to almost short out. I do have some relays for my hi/low beams which are controlled by the DC side, but I checked these for shorts and there were none. The AC side is completely isolated (ground and power) from the DC side. On the AC side, I have an AC regulator wired in parallel to the stator (white wire going to yellow, and green wire going to brown). Then I have the brown wire running to the GND of my headlight bulb, and the white wire running to the inputs of both relays. The output of one relay goes to the high beam and the other to the low beam. Then the headlight switch controls the relays from the 12V DC side. I don't see how a dead battery could be affecting the AC side. I'm just trying to state everything I checked in hopes that someone can come up with a suggestion that may help me figure out what is going on. Thanks.