Microsoft messed up the latest updates totally, was also getting 5-6 hours of light usage but that all vanished after the latest updates, it is now struggeling to get past 3 hours.
Ive tried to recover by downloading the .ZIP from Microsoft to get me back to 1703, it then updates to 1803. Trouble is it wont update to 1803 2019-07C because it stalls during preparation. It's been sitting at 98% all day. It's such a mess.