I couple of months ago I started using the launchpad, then I decided that a booster pack with a lipo battery would be a nice feature, so I went ahead and design my own. I build up a boosterpack, although, I first call it power-shield (newbie fail).
I decided to used a 14500 li-ion as battery due to their cheap price and relativele high capacity, I can charge it both by USB and a solar panel. For the output I an currently using a 3.3V LDO.
Do you have any ideas on how to improve it? I will be glad to hear your feedback