eau de sauvage
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@Batman, if you have a new battery fully charged and healthy reading say 12.7 with the static charge drained, then turn on the electrics the voltage will drop .5V maybe .6 which needs to be taken into account.
A better test of the battery is to see how low the voltage goes when it cranks over.
@JoG, I can say from recent experience on my GS that it's had a crappy wet battery in it probably for 5 years and would turn over instantly and all that even after a few low levels. However I checked it a couple of months ago and to my horror all cells were uncovered a fair way, however I resurrected it to see what would happen and it came back as good as new...
It was always 12.6 after the static charge had drained and had enough cranking voltage to turn over instantly. So I just ignored it. Never hesitated to start, then two weeks later we went on a long ride, pulled over a couple of times to get petrol no problem, then later we turn down an interesting looking side rd. Stop for lunch, go to start the bike and it is completely dead, not a flicker of life, I was convinced it must be a fuse or electrical, until I saw the tiniest glimmer of an oil light.
Fortunately the local Suzuki store was only 20mins ride away and it was a public holiday the day before, so it was all good. But there's a warning of how an apparently good battery can be inches away from death. Had we been out the day before, then I would have been up shite creek, sans paddle as they say.
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