EVEREADY GOLD 9V Batteries, 4-Pack

it's 2 a.m you're awoken by a single chirp you look around confused for several seconds and fall back asleep moments later the lone chirp startles you again this time you are determined to find out whether you are dreaming crazy or actually hearing something the chirp sounds you get out of bed hunting for the source the chirp taunts you until you look up and see a smoke detector with a faint red led you ask yourself why is this chirping isn't it hardwired until it dawns on you that there is a 9 volt battery used as backup do you have any extras on hand of course not nothing uses 9vs anymore so you check and see if amazon prime now has 24-hour delivery yet it doesn't if you order them for the next delivery slot rip the smoke detector out of the wall and pray your family doesn't die in a fire while you sleep their batteries they power things that will wake you up at 2 a.m and save your fa