I have noticed that batteries in my X70 are still discharging after I have turned the camera off. Explains my short run times.

Just me? Maybe I overlooked this in he manual.

I have not noticed this to be a problem.
I always leave the battery attached.
Just now checking my X70 that has been on the shelf for at least 4-5 weeks, the battery charge reads 100%

Make sure the viewfinder is fully pushed in. Ive at least once or twice made the mistake of leaving it pulled out and putting it in my backpack, only to find a hot potato with.a drained battery in there a couple hours later.

Good tip. I will check it.

Found the problem. Two bad batteries. Genuine Sony.....hmmm. I am contacting my supplier as I think these might be knock offs.