We charge our EVO's (2 of them) each night using the wall plug and, of course, the light is green when we wake up. However, when we unplug them from the wall the battery charge percentage drops from 100% to about 92% within a few minutes without doing a thing. Now, at that time if I put it back on the charger but this time plugged into the USB on my computer it charges back to the 100% and then takes a long time to trickle down to the 92% (seriously, like 90 minutes including some usage in there). I know there's some differences in the 2 charging methods. The wall charger charges much faster. But, it appears to be giving a false sense of a complete charge. The USB takes much longer (almost like a trickle charge) but seems to last longer. Anyone else experiencing this? Have an answer? Solution?