The Surface Pro 4 and Surface Book are spectacular pieces of hardware, but that is not enough.
Like each one on this forum, I spent hours diagnostic and troubleshooting the battery drain issue. Today I decided to search the web for a solution. I Googled " Surface battery" and to my surprise this
issue goes back to Surface Pro 2. Microsoft had 3 years to figure the battery drain problem and they did not.
I have the SP2, and used it daily, and I never had any battery drain.
My partner has the SP3 and never complains of battery life, at all.
There will ALWAYS be people with battery problems. Always. The problem that I'm seeing is that standby is consuming far too much battery. But having the last two Pro devices, I can say that this is a new issue for me...
I'm sorry you're having such terrible luck :(...
I too would want to return it if I had EVERY problem.
Now I'm only having poor standby battery, which I can deal with until they get a few more updates out. I have another 24 days to return it. If they don't fix it, I will return it and continue with my SP2 until issues are fixed.