Hello all, I've recently purchased a surface pro 4 I7 256GB. One thing I've noticed is that even when I put the device to sleep, it loses about 20% battery per day, sometimes over 30%. I noticed this in the first week or two so I've actually tested it over the last few days - put the device to sleep, and the battery still goes down at 20% or sometimes more each day. This seemed to happen even if I press the "battery saver" button. If I shut the device down completely, it does not seem to lose any charge (as expected). I also noted that is seems to me that it continues to lose charge in sleep even though the options are set to hibernate after 4 hours - surely after 4 hours it should hibernate and then stop losing any battery? I guess my question is whether this is "normal" that you lose 20% or even sometimes 30% battery per day in sleep mode and the only way to conserve battery when off is to shut down completely? I'm not used to these devices, but as an example, my experience with Ipads are that they hardly lose any battery (nothing like 20% per day anyway) when in sleep mode. TIA for any help.