You will received 5 packs of Ultimate Lithium AA 4 Count Batteries, 20 Batteries in total Lasts 7 Hours Longer in Handheld GPS Devices, Performs in Extreme Temperatures (-40 to 140F) Worlds’s Longest Lasting AA Batteries Lasts up to 5x longer than alkaline batteries in digital cameras and up to 3x longer in other cameras and flash applications Lasts up to 5x longer than alkaline batteries in digital cameras and up to 3x longer in other cameras and flash applications