How to extend the life of Philips batteries?

To extend the life of your batteries : * Store batteries in their original boxes or packaging. The battery packaging has been designed for maximum shelf life. * Store batteries in a cool, dry place. Do not store batteries in a freezer. Do not use batteries in high-temperature situations (more 45 degree C) unless the battery is designed for that temperature range). * Remove batteries from any devices that will be stored for long period of time.