While on a ride Saturday evening, my light started blinking indicating my battery. When I got home, sure enough, several cells in the battery were low. I picked up some distilled water and filed it back up.
The point I want to make is the next time you are tinkering with your bike, pull the cover off and look to see how full the battery is. And if is low, make sure you fill it with distilled water. You may have cells that are low and the sensor may not be picking it up because that particular cell is not that low. This will ruin a good battery if left too long low on water.
RandyA