Apple rolls out firmware update to revive old, troubled batteries
Yesterday, Apple rolled out a trio of firmware updates for MacBook users to help address a rare issue that can cause the batteries to malfunction. The update targets the System Management Controller in the MacBook, MacBook Pro and MacBook Air, which can run into issues as the computer ages. As Apple explains, "This update addresses a rare issue on some Apple notebooks where a battery that has accumulated more than 1,000 charge cycles may unexpectedly shut down or stop functioning."
You can download the fix for your computer of choice straight from Apple's support page, or click the links above.