All updates that I know of have been updated mr mixture, I'm not aware of any changes to power management in any updates. I have been informed that the battery is faulty by a friend who works for said company, but that as it is over a year old the warranty is gone and the policy is to be less than generous
I'm not trying to pull a fast one, but such a fall off in performance so soon in the spec seems a bit unfair.
SHJ