So, I've been riding my bike in some pretty cold (sub-freezing) temperatures on and off this spring. Nice weather finally hit and I go to take my bike to work, put the key in, and turn it .... *click*click* ... no juice. Ok. That's weird, it was working fine before this all spring. So I get out the battery from the VF1000F and jump start it. *vroom* ... success! I let it warm up, turn my heated grips on, and plug in my heated jacket liner just before departing. All is well with an enjoyable / uneventful ride to work. At the end of the day (it's about 61F out at this time), I hop back on the bike. No heated liner or grips required. It's a beautiful day. I put the key into the ignition, turn it, and ... *click*click* .... are you effin' kidding me??? One of the guys boosts me from his car and I'm off. Sadly, I had to stop for fuel and turn the bike off. Yup. Dead battery again (keep in mind - I'm commuting 45 mins or so on the highway). Get boosted and get home. I pull out the meter and the battery is low- I instantly order a new battery (I didn't have my battery load tester at home). I picked up the new battery today - they tested my old battery there and it was just starting to go weak. The minute I get home, I plug the new battery into the bike and charge it up ... ~ 13.15v resting. Perfect ... bike fires up right away and test the charging voltage @ 5000 rpm ... only about 14.15 but acceptable (I haven't done the connectors on this new bike yet so I expected it to be a bit lower). I turn on the headlights and it drops then comes back up to about the same. At this point, I'm a little concerned so I start digging deeper. Leakage current is about ~2.3mA with and without the stator connected. Perfect. I tested the resistance across all the coils ... ~0.3 - 0.4. Perfect. I tested to make sure there wasn't any continuity to ground from the coils, checked continuity between the R/R and the battery, and continuity between the green wires and ground. Perfect. Everything seems to check out with the exception of the slightly lower than expected charging voltage (I'm used to seeing a minimum of 14.3v and a high of about 14.8v from my other 2002). I reconnect everything and start the bike to let it warm up. Once it's warmed up I checked the following: Battery Resting (Ignition Off) = 13.15v (OK) Battery (Ignition On @5000 RPM) = 14.15v (OK but within spec of the manual) Battery (Ig. ON @ 5000 RPM w/Hi-Beams) = 14.15v Battery (Ig. ON @ 5000 RPM w/Hi-Beams + Heated Grips) = 13.8v Battery (Ig. ON @ 5000 RPM w/Hi-Beams + Heated Grips + Heated Liner) = 12.3v Hmmm. I think I know what killed my battery. It should not be dropping this much. It never dropped that low with my 2002 and the heated grips (I didn't have the heated liner yet). Stator or R/R? I'm leaning towards the R/R ... Thoughts? Suggestions? Am I asking too much from the stator and regulator/rectifier? At the max between the grips and jacket liner - I'm pulling 10.4 amps or less according to specs.