My DTEK60 has been draining battery , literally like spilling a full bottle. Doesnt take much time to go from 100% to 70 or 60 ( about 25 to 30 mins of use ). I have been a BB fan since years never expected this from them. Also during the battery drain the temp. of battery rises drastically . Reaches to a temp. Of 48℃ to 50℃. Please help