I'm wondering if there exist any (portable) consumer electronics devices - so like music player, mouse, flashlight, audio recorder - that take any chemistry rechargeable AA or AAA batteries, and can recharge them right in the device. [more inside]
How do rechargeable AA batteries in C-battery sized spacers (like these) compare to standard C batteries? [more inside]
Recommendations for AAA (or AA) powered laser pointers that I can use to play with my cat? [more inside]
I am really wary about buying a laptop with a non-user-replaceable battery. Opinions on this? How painful/possible is it to get such batteries replaced when they fail? [more inside]
Why am I not supposed to use rechargeable batteries in my vibrator? (NSFW) [more inside]
What types of rechargeable batteries will hold their charge over several days of non-use in a digital camera? [more inside]
Anyone know of a compact or subcompact digital camera that can run on rechargeable AAs, has at least a 5X lens, can record at least 720p video, and has optical or mechanical stabilization? [more inside]
Rechargeable batteries: Any difference between NiMH batteries purchased in Europe vs. US? I have several AA batteries I bought in Eur for my camera, but I don't have my charger with me in the US. 1. If I buy a charger in the US, can I charge the batteries I bought in Europe? 2. When I go back to Europe, is it OK to use the US charger on the European current with just an adaptor for the plug? I just want to make sure I don't (a) start any fires! or (b) damage the batteries. The batteries I have are all either 2000 or 2650. thanks for your help!
Laptop battery recycling: no nearby location will accept mine so far because it's degraded and puffed up. What are my options? [more inside]
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]
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]
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]
Where can I get compact, water(proof|resistant) and somewhat sturdy battery case? [more inside]
What's the deal with NiMH AA and AAA batteries being 1.2V? [more inside]
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.
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]