So a while ago the battery on my bike died...so I replaced it. Three weeks later that one died too. After some investigation I figured out that my voltage regulator was busted but I wasn't able to to get the part for a couple of weeks so I continued to ride the bike, swapping out the two batteries which I kept charging overnight on a trickle charger. This went on for a couple of weeks but each day the battery lasted less and less time, eventually while waiting for the replacement part to arrive I was having to take a spare battery with me just to get to work and back (60Kms round trip) in case it ran out on the way (Which it did once....). I have now replaced the regulator and confirmed that it is working (I put the bike facing a wall and revved the engine which caused the headlight to increase in brightness, something that it didn't do prior to replacing the regulator). I took a fully charged battery, or at least the charger said it was full, and went for a ride. All seemed to be fine until I got home where I decided to restart the bike a few times to make sure it was ok....after three starts the battery no longer held enough juice to kick the bike into gear...aarggh!@*@#$)! Soooo....I have the following questions: 1.) Could the battery be fcuked due to being ridden with a faulty regulator and if so shall I just try the other two I have in the garage? 2.) Is there a way to check if the battery is fcuked? 3.) Apart from the light test are there any other test I can run to confirm it's all working? 4.) Do I need to start worrying about my stator or other electrical issues? Thanks for the advice in advance!