Just checked SP1 again.......Update did not fix issue...........
Was delighted that after 1 hour only 3% drain (better than nothing)........
then the problem came back again.
18:09:18 Suspended 87 % 33,278 mWh
19:44:46 Active Battery 84 % 32,153 mWh
19:52:26 Suspended 81 % 31,139 mWh...