@ pigoo3, yeh i noticed that after a while of reading forums, lol. I mainly tried to get up my battery capacity again, of it dosnt, then oh well. Im still happy with it
Let me share a bit more info. We get so many threads regarding laptop batteries here on Mac-Forums...that sometimes I feel that my head will EXPLODE with what folks say "they've read"!!!
There is so much bad information out there about laptop batteries:
- should the battery be drained completely before being recharged
- should it be drained to 50% before being recharged
- should I leave my laptop plugged in all the time or not
- should I calibrate my battery or not
- etc. etc. etc.
I am very very scientific & logical with most of the info I share...since I HATE to support any "rumors" or theories out there about laptop batteries which don't have any data behind them to support the theory. Many of these "theories" are what users "feel"...and not what they're actually experiencing. The problem with users "feelings"...is they choose to "remember" the bad...and many times not the good.
With this being said...laptop batteries simply wear out. Every full load cycle that is used...is one less load cycle left in a battery's "lifetime".
Here is my personal situation. I have a 17" MacBook Pro. My current battery is 2 years & 5 months old. I have an:
- original battery capacity of 6300mAh
- current battery capacity is 6472mAh
- so current battery capacity is 100%+
- if I run my laptop on the battery I get 4-5 hours (exactly what this battery should do given it's 100% capacity)
- and I only have 26 load cycles on the battery
...I keep my MacBook Pro plugged in 99.8% of the time...and as battery "maintenance" step so to speak...I run my MacBook Pro on battery power about 2 hours each month. I have NEVER calibrated my battery. I'm not saying folks shouldn't...but so far I haven't needed to...and with 100%+ capacity after almost 2.5 years...I don't want to "jinx" myself!
My main point is...for folks that leave their laptops plugging most of the time...leaving your laptop plugged in basically 100% of the time (at least in my experience) has had no negative effects on battery life or battery longevity (knock on wood)!
Of course if I ran my laptop off the battery more...I would have more load cycles...and thus my battery capacity would most likely be much lower...just as it's supposed to happen.
As myself & others have mentioned many times here on Mac-Forums. If you take the cost of a replacement battery...and divide it by the number of days of use you get in the lifetime of the average laptop battery (let's say 3 years)...it works out to be something like $.12 cents/day! So folks should just stop stressing over laptop batteries.
Good luck,
- Nick
p.s. Of course with my current battery being almost 2.5 years old (26 load cycles & 100%+ capacity)...I should get way more than 3 years from my battery.