DIY laptop battery pack (textbook size) Answered
it took me a long time to find a suitable forum to ask this.
I have a thread at Cnet, a tech site.
I'd really like to have the power I need to last through the school day, and I'm sure other students feel similarly.
I thought about solar, but it's too low of a yield. Nimh and Ni-cad have shorter lifespans than Li-ion.
What's necessary in this setup would be:
small enough to fit in a backpack
thin enough to leave room for my books if need be
must be able to fully recharge a laptop at least once while in use.
AC current preferred, DC if necessary, I can get an inverter.
I have a soldering gun in my electrical kit and would love to show off to my friends next school year.
edit: I forgot to include that this is to use with a laptop
update: I've decided that I can use a briefcase if I get a slightly larger backpack next year. I found some batteries, and I'm trying to figure out the voltage and amp-hours for the PCB and charger
To clarify: THIS IS AN EXTERNAL BATTERY PACK.