I have been running this Raid 0 setup for 18 months now.
I find the 5 second boot from cold and fast loading of my apps far from negligable.
Also if I am smart and don't leave browers windows open which suck power I can run 8-10 hours doing writing on Word and listening to music on my BT headset. I do turn on the battery saver mode to get this as neither activity needs the processor running full out.
If you are seeing signifcant loss of battery. Start looking for another issues. There are reoccuring issues with Windows and even some software that will kill the batter if you are not paying attention.