Ultimate lithium batteries are the world’s longest lasting AA battery in high-tech devices. Lasts up to 9x longer in digital cameras, up to 9x less waste. Lasts 8 hours longer in GPS. Performs in temperatures from -40 to 60 °C (-40 to 140 °F). Holds power up to 15 years (when not in use). 33% lighter than ordinary alkaline batteries.