Free battery software for mac

Drop an mp3 file on this application, and it will be split into multiple parts.
Save battery life on your iPod by splitting mp3s longer than 20 minutes. Based on mp3splt command line tool. Very fast since mp3 files are not decoded when splitting.

Download includes source code.

pwrcheck is a simple, scriptable, command-line utility to determine if you are running on battery or not.

pwrcheck returns 0 if the computer is running on AC power, or 1 if it is running on battery. The source code includes a trivialshell script check.sh that shows one way how to use pwrcheck to determine if running on battery.

BatteryAlarm warns when battery power is below a user-definable threshold (default = 5 minutes left).
BatteryAlarm is multiple-battery aware.

Place it anywhere and add to Login Items.

Battery Monitor is a simple application that records the performance of your battery over a discharge cycle by writing the power and estimated remaining time to a text file every minute. You can then use this list of values to see if it works as it should. (E.g., does it discharge fully or does it break down prematurely?)

Note that this tool does nothing magical. It simply records to a file what you can see when you use a stop watch and look at the battery indicator in the control strip or menu bar.

Since the values of every minute get recorded, you can use the output also to iport into a spreadsheet for making nice graphs. Its up to you to figure out how to do that.

APC Powerchute is a safe system shutdown software with sophisticated power management functions, and is the ideal choice for home APC Battery Backup users.
Enhancements:
- Added support for Intel-based Macs.

BatteryStatsX is a program that will give you detailed information on your Macintosh PowerBook or iBook battery under Mac OS X. BatteryStatsX runs from 10.1 to 10.3.
BatteryStatsX features a main window that displays voltage, charge, amperage, current charge, charge capacity, battery time or charge time remaining, and if the computer is plugged in or not. The applications dock icon also displays a battery icon indicating charge and whether the computer is plugged in and charging.
Enhancements:
- Remade application window with battery display
- Dock Icon with percent charge and charging indicator
- Dock menu
- Battery Charge Graph (still in development).

BatteryInfo is a Dashboard widget designed to be a better looking, dashboard based replacement for the menu bar battery monitor. Thanks go to Luis Moreno for the graphics and to Marc Wolfgram for helping implement dual battery support.
It has the ability to display the percentage charge remaining. It can also display the time remaining on current charge, although this feature is somewhat ugly and needs beautifying, so if anyone has any suggestions for making it look better, mail me! It also fully supports dual-battery setups in Pismo laptops. If you have any comments, queries or suggestions, mail me at widgets@menial.co.uk.
This widget is more accurate than other copies out there are it pulls its information from the same place as the Apple menubar item. It also looks nicer IMO ;)
This widget is freeware, although donations to keep me in bandwidth are much appreciated. You can do this through the widget homepage.
Main features:
- Graphically display battery status
- Display the percentage charge remaining
- Display the time remaining on current charge
- Dual battery support
- Localized in multiple languages.
Enhancements:
- Fixed display of several languages which would not show accented characters
- Improved display of percentage battery charge
- Optimisations reducing widget size.

BF Menubar is a small application which enables you to add menu bar items with a single click!
You can choose from the following: Airport, Battery, Bluetooth, Classic, Displays, Eject, Fax, HomeSync, iChat, Ink, PPP, PPPoE, Remote Desktop, Script Menu, Sync, Text Input, User, Volume, VPN.
Completly freeware for personal use.
Enhancements:
- Added nicer GUI
- Fixed minor bugs.