eneloop pro batteries are the perfect choice for powering high current consuming devices such as photo strobe flash lights, wireless keyboards, mice, game controllers, radio controlled toys and a range of household devices. They can all realize extended performance when powered by eneloop pro batteries.Unlike regular alkaline batteries which can only be used once and are wasteful to the environment, the eneloop pro batteries can be recharged up to 500 times. They come pre-charged and can be used immediately out of the packFeaturesLow self discharge rechargeable batteryProvides high power performance down to sub-zero temperatures (as low as -20ﾟC) Can be recharged up to 500 times Combines the best features of AA alkaline (ready for use) and rechargeable (reusable) batteries Factory pre-charged by solar energy and ready to use right out of the package Maintain 85% of their charge after 1 year of storage Stable voltage with longer power life than alkaline batteries No memory effect - batteries can be recharged when fully, or partially drained Provide long lasting power while saving costs