Easiest way is to buy a new battery - Sorry, but batteries are unreliable, especially if they are over 2 years old.

You can also try a free program called Battery Care.

The fact is, you can recalibrate laptop batteries if it supports such a feature (Cheak in BIOS, or power software), but it sometimes does not work. Doing what you do of having a full battery and allowing it to run down completely usually does the trick.

Laptop Battery does not show true charging level
In answer to this question, there was some discussion about whether these two sentences are equivalent:


  Art nurtures the soul.
  The arts nurture the soul.


Are they equivalent?  

'The arts' is a common but woolly term and 'art' is notoriously difficult to pin down.  Oxforddictionaries.com gives the following definitions:


  
  art [mass noun] the expression or application of human creative skill and imagination, typically in a visual form such as painting or sculpture, producing works to be appreciated primarily for their beauty or emotional power  
  (the arts) the various branches of creative activity, such as painting, music, literature, and dance
  


What practical differences in usage are there (if any)?

Also, does Art (capital A) have a special meaning distinct from art (lower case a)?  
