Transformer Book T100:ASUS Business Manager-Power: If you want to do power saver, please get in Power function.

One Tablet, One Laptop, One Device

• High performance laptop with a detachable keyboard
  An Ultraportable with a detachable 10.1” Windows tablet
• Up to 8 hours of battery life
• Microsoft Office Bundle
  includes Microsoft Office 365 with 1 year subscription (may vary by different sku)

As the battery pack is : 2Cells 31 Whrs Polymer Battery ,Please get in Power function: power saver

Then you can set  the time that your computer  goes into  hibernate  in on battery mode and plugged in mode.

Asus t100 battery draining insanely fast,WIFI....BlueTooth....and other things like that running - those use more battery power than all the apps combined;so we would like to replace the battery after its drained;  we offer the  New Genuine Battery for Asus t100 battery ; you can  replace and by following the tips above ,you will get your battery performance extended at most level;