Battery Health Monitor

Design Capacity is an indication of the battery's storage capability when it was new. Maximum Capacity indicates how much that original capacity has changed with use. Current Charge shows the battery's current charge state while Charge Cycles indicates how many complete charge/discharge cycles the battery has experienced. The percentage value indicates approximately what portion of the number of total recharge cycles that the battery supports have been used.

The annunciators at the top of the window indicate the state of the computer's power manager circuit and the battery or batteries installed.

For detailed information on how lithium ion laptop batteries work and how to interpret the information displayed by Battery Health Monitor, click here for our Battery FAQ.

System Requirements

• Battery Health Monitor is now a 64-bit application
• Improved battery status checking based on the latest manufacturer specifications
• Changed "Original Capacity" to "Design Capacity" and "Current Capacity" to "Maximum Capacity" to better characterize those battery values

• Dramatically improved compatibility with PowerBook G3 and G4 models using older version of Apple's battery update software

• Updated to improve compatibility with Aluminum PowerBook G4 models

• Universal binary--PowerPC & Intel native
• Updated to support changes in Apple's Battery Update 1.1
• Optimized internal processing for improved performance

• Reduced processor loading for PowerPC G3 and G4 Macs
• Corrected a problem with the "Battery Life Remaining" graph

• Updated for compatibility with Intel Macs

• Initial release