I think I'll wait till beta 3 and see what's thats like, seems to many annoying issues here and there still.
On a side note, I haven't been on a beta on my Max since I got it at launch and my battery is holding up rather well. My 8 Plus was dropping 1-2% health a month and I was always on the beta train, every update. One thing I have done different is not let the phone go out of the range of 10% and 95%, I don't charge my Max overnight too much and rarely leave it sitting on charge at 100% for long periods.
Currently sitting at 3,300 mAh (usually is around 3,330 mAh) which is more than the original 3,174 mAh... for anyone wondering the Battery Health on the iPhone says 100% too.
P.S Sorry for going off topic