Battery Health

using iStat Pro on my mac it saying my battery health is 91% that not good is it how do i get it to improve? It been charged 137 times thou.

Any help

Cheers

did you do the monthly calibration by draining the battery completely?

I drain my battery completely every time before i charge, this i mean i wait till the computer goes to sleep after i had the battery warning and then i stick it on charge while it a sleep is that the correct way. Or when it goes to sleep have i to turn it off completely before charge. The battery is not very well at all. What am i doing wrong

You're cycling it too much. If you do a search on this forum, there are a lot of references to how you can get the best out of your battery. But letting it go all the way down every time is putting a lot of strain on your battery.