Laptop battery recycling: no nearby location will accept mine so far because it's degraded and puffed up. What are my options? [more inside]
posted by randomstriker on Aug 10, 2009 - 8 answers

One battery, multiple tools: for what line of power tools did I see a commercial that featured one battery that you could switch out between the tools? [more inside]
posted by sjuhawk31 on Jul 31, 2009 - 12 answers

If I put rechargeable batteries (batteries, not a battery pack) in an Xbox 360 controller, and plug in the charge wire that is typically used for their battery packs, what will happen to my rechargeable batteries? Will they actually recharge? Will nothing happen? [more inside]
posted by AlbatrossJones on Feb 27, 2009 - 4 answers

Why is there no bat-acitor? (hybrid battery/capacity w/best of both) Is there some limitation in physics, chemistry, materials, etc. that prevents it, or has it just not been invented yet? [more inside]
posted by bartleby on Jun 10, 2008 - 24 answers

Where can I get compact, water(proof|resistant) and somewhat sturdy battery case? [more inside]
posted by strangecargo on Jan 30, 2008 - 10 answers

What's the deal with NiMH AA and AAA batteries being 1.2V? [more inside]
posted by knave on Jan 11, 2008 - 32 answers

Does this camera exist? If not, what comes closest? Slim, lightweight digital camera that 1) can be set to do exposure bracketing of every shot, 2) uses either full-size SD or CF cards [not Memory Sticks], and 3) has an internal battery that charges via a standard mini-USB jack.
posted by lorimer on Jul 19, 2007 - 11 answers

What is "modified sine-wave" power, and what will it do to my electronic devices? I have a portable Xantrex battery, and it came with a warning that certain rechargeable devices may not be compatible with its modified sine wave output. [more inside]
posted by Caviar on Jun 16, 2005 - 9 answers