troubles: no power, charger not doing much
I've been riding my step-father's '91 k1100ls for the last month or so... he's moved to a new home that as yet doesn't have a warm comfy place for the bike, so I've been bike-sitting.
Today I took the bike to work. I was late, and parked quickly and ran inside... and I think that I left the ignition slightly on (with the heated grips on, to boot). Needless to say, 9 or so ours later I returned to a very dead bike.
I put the bike on a trickle charger this evening, but it didn't seem to engage (though the 'on' light was on, the 'charge' light didn't engage). In perusing the interweb, I've seen a post or two that say that sometimes these chargers will not engage if the battery has no charge. Can anybody confirm this? And if so, is there anything I can do to work around this?
I've also noticed that the ABS lights go a bit wacko at start... and have seen a post or two that attribute this to a end-of-life battery. Is it possible that the trickle charger isn't engaging because the battery is toast?
Any advice or comments would be great.