Feedback for v1.8

Hi,

today I got a message that my sd-card should be formatted because it wasn’t readable (my main storage, keeping pics and so).
There are some 15 GB of music on it and my recent photographs, two reasons to regret loss as well as copy-time.
So I shut down the phone, took out the sd, inserted in my laptop - all readable, all fine.
Put it back in again, rebooted - all fine.

Then I installed v1.8.1 on my FP3+ today (previous was 1.7., not rooted).
Went smoothly, except the missing of a reboot option which I replaced manually.
Looked for the battery, and found this:


The portrait view presented this, though:

49 days?

I have recently kept record of my charging cycles to optimize battery capacity, so I’m sure that it got fully charged on February 4th, 12 days ago.

What is wrong with the phone?