So Energizer or Duracell? Or some other brand? I'm confused. Apparently they are both 5 times more powerful than the other. I'm looking for the best value-for-money AA battery on the market (i.e. battery hours per dollar). I understand it depends to some extent on the device. Let's say two devices - the TV remote control - and a digital camerra. Anyone have a link to the definitive report? [more inside]
posted by zaebiz on May 13, 2007 - 28 answers

How much exactly will using my laptop on AC destroy my battery? [more inside]
posted by qvantamon on Nov 25, 2006 - 15 answers

How can I optimise my laptop's battery life? Are the things I'm doing helpful? [more inside]
posted by altolinguistic on Jun 2, 2006 - 8 answers

I've got batteries on the brain today (slightly-earlier post about aftermarket laptop batteries), but this thread and my growing frustration with my increasingly-relied-upon cell phone brought to mind another question: how much battery life does your cell phone really get? No matter where I am, how much I use it, or even if it's on or off, my Samsung SPH-N400 gets 24-36 hours per charge, at best, compared to the advertised "Talk Time: Up to 2.9 Hours, Stand-by Time: Up to 7 Days." (more inside...)
posted by Sinner on Mar 3, 2004 - 11 answers