I am hitting Bonnaroo this year and am worried about my Droid keeping a charge all day with me taking pictures, using GPS, the bonnaroo app, facebook, etc. On top of this, reception at the farm is not always great, which is usually a death wish for my battery life. I was originally going to wire up something to charge my phone using the DVD batteries in my taping rig but don't want to risk not having juice for the rig itself. So I started poking around the internet and found something that I think will work great...
It's call the MintyBoost and I found it on instructables.com:
http://bit.ly/iQcyLHLooks like a pretty simple circuit, but I still decided to buy the whole kit from
this site so I didn't have to track down all the parts from other sites. The kit was $20 and I would easily have paid that much in shipping from Mouser/Digikey alone.
I'll snap some pictures during the build and let y'all know how it turned out. Seems like a cool project and will come in handy for emergencies when I don't have an outlet handy.
And no, I don't have any affiliation with the product or it's designers even though this post reads like a paid advertisement