Count me in too… the original battery would never move off 100%. I had actually totally depleted the battery and the S2 had similar symptoms. Leica should be exchanging the battery, and I had second battery.
So, I guess a battery can “go bad” at some point all on its own?
I would like to see Leica add an info screen like they have the M9 where is shows the battery at X% of charge; and I’d like to know how many clicks on the battery since the charge. This way if I see some numbers that don’t reconcile with my usage, then I might have a hint that the battery is going south. If nothing else, it’s just interesting trivia to better understand the S2’s power usage characteristics.