- 02-20-2013, 11:27 PM #1
So, my surface went from reporting 0% wear to 5% then back to 0% and now to 7%
What should I make of this?
I called Microsoft and the rep said it should settle around 5% and hold there for some time but my experience with laptops past is much different.
The wear would slowly rise from 0% to 10% over the course of a year.
What do you guys think?
- 02-22-2013, 02:18 PM #5
I don't know if its a sensor issue (cant be an app issue because all report the same thing) or a battery issue.
every time I plug it in it charges to the full MaH, and then the battery reports it has 0% wear
it is only when the battery gets to 30%/40% that it begins to report any wear
02-22-2013, 03:05 PM #6
- 238 Posts
I have the same thing when I use battery bar on my macbook pro running bootcamp, and I think that I've figured out the reason for this: The battery usually doesn't charge up to 100 %. This is a feature that gives the battery a longer life time because lithium based batteries don't like to be fully charged or fully emptied. So I figuerd out that battery bar considers not arriving to "true 100%" as wear.
- 02-22-2013, 04:18 PM #7
Hmm your theory makes a ton of sense;
but how does that account for the changes in level 5%-7% and then going back down to 0%
wouldn't it be a set point at which the battery doesn't charge any further? or is that range close enough?
I think it would be beneficial if a few other surface pro owners would track their battery wear levels and report back in a few days
this seems like something which would be of benefit for to community as a whole