+1 on the 720 width for videosI have the same issue in February - many trans-atlantic and trans-pacific flights. I happen to have a tekcharge MP1800 that I used on a little chinese media player. I've connected it to the nook, but it doesn't indicate that it's charging the Nook (but the cord light turns orange). Soon I will test it by draining the NookColor's internal battery and then see if it will provide juice. I will post my results here.
Regarding videos I recommend 720px wide by whatever height (depending upon Aspect Ratio). MP4 container, mpeg4 (or h.264) video codec at 1024 kpbs, aac audio stereo at 44100 128kbps. Looks nice and performs well.
The tekkeon above does 1000mA - I'm going to test how it behaves with a battery-depleted Nook at some point. What's the quickest way to drain a battery (is there a util that can help here)a portable power supply that can offer more than 500mA
Ah, great idea! Seems that the NC kernel has three clock speeds: 300, 600, and 800 MHz. Setting SetCPU to underclock at 300 MHz will probably extend battery life quite a bit. I have my Droid set to minimum speed when it sleeps...I wonder if that would work on the NC?Sightly off subject/side note: Install superuser, install setcpu, setup some good power profiles and your NC will live long and prosper.
...but getting a external changer to work for the NC is a great idea.
Hey Mike, a minor follow-up to your experiment. On a whim today I attached a Duracell 4-battery charger that includes a USB output:Interesting discovery
This thing won't turn on with a very low battery- even plugged in. Instead of that goofy" touch the future" message, you get a big red battery ppicture telling you to try again in15 minutes.
Anyhow my experiment with running on my little external charger failed. The next trick would be to plug that in on s full battery and see if it increases runtime
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