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ChargerChecker is the best, most full-featured power state alert app available. It works in conjunction with Growl to give you on-screen notifications when your laptop's charger is connected or disconnected. With the release of the MacBook Pro, Apple also introduced a brand new power adapter that uses the MagSafe connector. While this innovative new feature can save your laptop from being jerked off the table by a careless passer-by, many people have complained that their power adapter becomes unplugged inadvertently without them ever knowing it. This can be a huge problem when you more...

What's New

Version 0.5:
  • Completely Rewritten
  • All New Interface Offers More Control
  • Low Battery and Charge Complete Alerts
  • Automatically Checks for Future Updates

Requirements

Mac OS X 10.4 or later, PowerBook, iBook, or MacBook Pro, Growl installed.

*Previously available here

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ChargerChecker User Discussion

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Thec13 Member IconComment+29
Thec13
+0

Any problems with running this app in Leopard?

Reply0 replies
Version 0.5
Abbott Member IconReview+36
Abbott
+0

While the functionality is good (it's nice to have a visual warning when your PowerBook power supply is disconnected), this app is definitely NOT the one to use.

Problem: the application prevents the PowerBook from sleeping (Mac OS X 10.4.6 at least). I did extensive troubleshooting and finally attributed the problem to this app.

Second problem: ChargerChecker prevents the disk drive from spinning down. In addition to draining the battery more quickly (my life dropped 15-20 minutes when running this app), it made estimates of battery life unreliable.

Third problem: actually an issue rather than functional problem. This application phones home (Little Snitch revealed this).

Reply1 reply
Version 0.5
cbrantly
+0

I don't think your sleep issue is related to ChargerChecker. I use it on several laptops and have never had this problem.

The phone-home only happens once when you launch the app or when the daemon starts. This is checking what the current version is to give you update notifications. No personal information is sent.

richardcranium Member IconComment+0
richardcranium
+0

All I get is Applescript errors, over and over.
Unfortunately, useless.

iBook G4 10.3.9

Reply2 replies
Version 0.5
cbrantly (Developer)
+0

ChargerChecker requires 10.4.

richardcranium
+0

Oops, my mistake. A similar program works with 10.3 and I was doing a comparison.

Cheers.

truthhurts Member IconComment+415
truthhurts
+0

How many of these silly things do we need? I count three just today!

Reply0 replies
Version 0.2
S Club 1 Member IconComment+0
S Club 1
+0

Pointless app!!

Go to System Preferences > Energy Saver and change 'Other Options' Settings for: Battery to 'Reduce the brightness of the built-in display when using this power source'.

If the cord is unplugged the screen will dim noticeably. Of course it won't dim if originally at 1 bar, but if you're plugged into power why are you using the screen on minimum brightness?!

Reply2 replies
Version 0.2
pianomansam
+0

I use a similar piece of software to ChargerChecker. Yes, you could noticed a change in brightness, as you said, if the brightness on battery is high or both are low it wouldn't be noticable. I find though that even with differences in brightness I sometimes still don't realize the cord has been disconnected. Hence why the need for such an application.

cbrantly (Developer)
+0

Your method also doesn't take into account if the user has their display set to adjust to ambient light. Just because your screen dims doesn't necessarily mean that your power supply was disconnected.

andu Member IconComment+11
andu
+0

seems to use a lot of cpu on my pb g4 titanium 1Ghz

Reply0 replies
Version 0.1
John Labovitz Member IconReview+0
John Labovitz
+0

This is a lovely little tool. Very simple, does what it's supposed to do and no more.

To the developer: I'd recommend using a disk image instead of a zip file to distribute the app.

Reply1 reply
Version 0.1
cbrantly (Developer)
+0

John,

Thanks for the review. The new version of ChargerChecker uses a disk image.

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Ratings

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Current Version (0.x)
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Details

Downloads 3,339
Version Downloads 2,943
Type Utilities / System
License Free
Date 27 Mar 2006
Platform OS X / PPC 32 / Intel 32
Price Free