The battery in my G4 Powerbook won't charge, and I am a long way from any technical help! [more inside]
posted on Jul 30, 2007 - 5 answers

We've all been reading about the iPhone and its battery that's supposed to last 300-400 charges. How do they define "charge"? I usually charge mine every night, when the battery is at about 50%. Is that a "charge"? If I top my iPhone off when it's at 80%, is that a charge? What's the best way to preserve the life of my iPhone battery?
posted on Jul 8, 2007 - 10 answers

Small, WIFI, USB, Externally rechargeable batteries, Tablet PC Does such a beast exist? [more inside]
posted on Mar 10, 2006 - 9 answers

I have an old portable solar panel setup rattling around, and I'd like to put it to use. [more inside]
posted on Mar 2, 2006 - 4 answers