Well I did a long duration low intensity 90km ride today. Now thats not much in terms of exercise and it was no problem. Sadly I forgot that the storage battery I've been using to run my 12v usb phone charger was only 1600mah and running the map utility most of the ride (exploring new territory) drained it to 2.6v per cell. The smart charger won't even try to charge it and the 'dumb' lipo chargers I have at least initiate but I see no real rise in cell voltages. It seems a sad end for my battery. Any chance of saving it?