Comments on: How-To: Calibrate Your Laptop Battery

By: Lisa Fusella

Lisa Fusella — Tue, 15 Jun 2010 15:56:41 +0000

I bought a MacBook Pro less than 12 hours ago and I left it to charge. The light went from Amber to Green in about an hour and a half. So I opened it up to use it and set things up and whatever.

Then about 6 hours later I pulled it off the main power supply and the battery has been acting strange since. It started off a 8:30, then within seconds dropped to 8 then 7:30, then back up to 8, then to 9:30 and then dropped to 6:30. It keeps going in patterns like this.

Are you able to help? Thank you.

By: Cindy

Cindy — Sat, 13 Mar 2010 05:30:23 +0000

wow…here I was looking on this page to see if my battery had something to do with my computer slow down..and this guy mentions Cooliris. I had a slowdown for about 2 weeks now….my typing is even faster than what my computer can keep up with. I’m going to delete Cooliris to see if my computer speeds up. I had downloaded it about 2 weeks ago, when all my problems started.

By: Power

Power — Sat, 06 Mar 2010 07:17:20 +0000

Why do batteries gradually lose their ability to hold a charge?

By: stigger

stigger — Sun, 24 Jan 2010 04:20:11 +0000

I think what apple means is either to let it sleep OR off for 5 hours or more. The key being the 5 hours, sleeping or off, both methods work.

By: robinson

robinson — Fri, 01 Jan 2010 14:13:40 +0000

How does one turn off the laptop when it’s in sleep mode? Does pressing the power key work?

Apple’s directions imply that one doesn’t need to sleep for 5 hours, just turn it off (do either one).

See http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh2339.html

By: don

don — Sat, 28 Nov 2009 15:31:28 +0000

is much easier just to buy a new one, conidering how cheap macbook battery is these days, 49 on amazon.

By: The Review Site

The Review Site — Wed, 11 Nov 2009 09:11:06 +0000

Good post congratulations.

By: Soff

Soff — Sun, 25 Oct 2009 00:14:14 +0000

It works for PC’s too. At least HP has a battery option that is called calibrate (or i believe you can create it). When you unplug your computer, put in that mode and then follow the rest of the steps.

By: bart

bart — Wed, 14 Oct 2009 12:12:13 +0000

This works I tried it, my macbook holds charge like a trooper since I did this once a month.

By: Bala

Bala — Fri, 25 Sep 2009 08:55:56 +0000

Yes, it works with ipods too. In fact this holds good for all Li-ion batteries.

By: Anthony

Anthony — Fri, 11 Sep 2009 15:36:28 +0000

Well it's a very good post coz i found it as a guidelines in my laptop battery from now on and maybe others might find it very interesting and use it as a counter measures for their latop batteries. Laptop Batteries Whole Sale

By: jason

jason — Sat, 15 Aug 2009 20:27:32 +0000

my laptop battery will not charge any more its like frozen on the power meter how can i fix that.

By: batteryxia

batteryxia — Sun, 09 Aug 2009 09:05:20 +0000

Lately I encountered problem where battery drained faster than usual. I found out that it was Cooliris, a media browsing plugin for Safari, and Windows XP on Virtual box, causing the fast drain issue. I still need to run Virtualbox occasionally, but have removed Cooliris, now battery comes back as normal, laptop battery and I noticed that the fan spin slower. Perhaps beside calibrating battery, background application is something that we need to watch out as some app just take too much CPU cycle even running background.

By: batteryxia

batteryxia — Sun, 09 Aug 2009 08:52:58 +0000

In my case charge current is step changing in 56% and 75% of full capacity during recharge. MY recommendation – 1,laptop battery when you transport your MacBook with power adapter unplugged in “sleep mode” for longer as 2-3 hour – shut down your MacBook. 2, when you discharging battery watch 55 or 75% of discharge when it is possible recharge battery. For instance – 3 times discharging from 100% to 75% – battery cycle counter increase only about +1 after 3x recharge. 3, when you working (or leaving) plug and connect power adapter to your MacBook, even if it is charged for 100%.

By: Buy Laptop

Buy Laptop — Tue, 04 Aug 2009 08:24:08 +0000

This is a very good post! Some of us don't really pay attention to our laptop battery life when we buy-laptop and therefore we don't even know how to extend our laptop battery life, until we learn that the laptop battery seems to last shorter than it should be. Very nice posting!

By: Chin Yau Chia

Chin Yau Chia — Wed, 29 Jul 2009 01:11:52 +0000

My MacBook, 22 months old, was constantly on, well, almost. I seldom shut down and I am a heavy user, typically using more than 12 hrs per day.

I always connect to power source when possible, regardless of the battery level. And it has now reached 390 load cycles, and still having a good 93% and lasted for almost 4 hrs if I am not charging.

Lately I encountered problem where battery drained faster than usual.

I found out that it was Cooliris, a media browsing plugin for Safari, and Windows XP on Virtual box, causing the fast drain issue.

I still need to run Virtualbox occasionally, but have removed Cooliris, now battery comes back as normal, and I noticed that the fan spin slower.

Perhaps beside calibrating battery, background application is something that we need to watch out as some app just take too much CPU cycle even running background.