It charges full 100% but it seems the battery drains quickly.
I doubt you will get 10+ battery life out of pandora,this need to be sorted out soon,battery only lasts 1 or 2 hours.
Mine is running a full day (from 10am till 10pm) on HF7a2 with a single charge, no problem here.
With WiFi, it goes down to about 8 hours, with standard brightness and 700 MHz (OPP3).
With higher OPP, WiFi and full brightness it probably goes down to 6 hours, but it shouldn't be 1-2 hours.
However, as said, there was a bug in HF6 that's not fixed in HF7a2 which causes the issue for some that the battery can't be fully charged.
Maybe this all adds up for you.