Apple has become the latest notebook manufacturer to admit that it has battery problems – in its MacBook and MacBook Pro versions – but stresses that these are purely "performance issues" and do not constitute a safety risk.

On its website, Apple says the problems are software related and that it has issued a patch which is available on its Software Update. If the patch doesn't work, users can replace their batteries at various Apple outlets.
"The factors causing the performance issues do not present a safety risk," the company states. "You may continue to use your current battery."
Apple advises that the battery update should be run on all MacBook and MacBook Pro computers and extra batteries that were purchased between February 2006 and April 2007.