10-04-2018 09:25 AM - edited 10-04-2018 09:43 AM
Bought a X260 a week ago. It is a used machine but it is as new.
Battery health was 95% for the internal one and 93% for the removable one (last checked yesterday).
I've been charging it and useed it on batteries this last week.
Today morning, after charged overnight, noticed the internal battery health plunged to 80%.
Is this behaviour normal=?
I find it very odd...