What is the usefulness of knowing the lifespan of random batteries on random devices? My smoke detector battery lasts about 10 years.
Really?!? Ten years for a smoke detector battery. You must have notifications turned off
My phone... a good three days.
My PC... none.
My Kindle... about a month.
My GBA... can't remember the last time I charged it.
3 days?
You must have the droid RAZR maxx O the maxx hd?
Or are you a very very light user in a strong signal area?