Just a FYI, I opened a 16 pak of AA batteries with still two years left on the date....Dead in the water, the engerizer bunny must have smothered....I remember buying them because they were on sell at walmart for 8 dollars, I normally buy Duracells but the kids keep bugging me for batteries, so I would just give them the engerizers instead of my Duracell stash........If you measure the voltage it is good, but in a high draw toy they fail, they will work in remotes or clocks but will not work in a led headlamp, flashlight or PS3 game controller......