Hi,

since a few days i own a new XPS 13 9350 and i noticed two problems

first:

according to the documents it should have a 57.5 Wh battery (construction-capacity).

as measured by Battery Bar and Dell Support Assist my battery has fully charged "only" 53.5 Wh battery capacity or even a loss of capacity of 6.9% at delivery ....

second:

i fully charge my battery (= 100% charged) and turn of my XPS complete. after two days i turn it on again and battery is just 90% charged. a loss of 10% while doing nothing... :-(

same effects with your XPS13?