The battery issue is likely because sleep is no longer sleep. Laptops have stopped properly supporting S3 sleep, where the cpu is off but memory is retained. Of

The battery issue is likely because sleep is no longer sleep. Laptops have stopped properly supporting S3 sleep, where the cpu is off but memory is retained. Often what you get these days is S1 sleep where the system can be woken by software and start installing updates. Older laptops don't have this issue so bttery use is no problem.