This is really cool project, but please be careful if you're considering building or purchasing these for emergency or accessibility-related reasons. The phone

This is really cool project, but please be careful if you're considering building or purchasing these for emergency or accessibility-related reasons. The phone's build-it-yourself kit instructions[0] mention that the battery and signal strength indicators aren't yet functional. "Currently, battery and signal strength metering is not working. I hope to have this fixeed in firmware soon, but this further complicates the above quirk. If you have a voltmeter, it's easy to probe battery voltage without opening the case vai the ICSP header on the back" From previous discussion[1] it sounds like the battery life is approximately 24h. Not to be a downer but sometimes it concerns me when we celebrate things which people might consider useful for critical infrastructure when they're not ready. [0] - http://www.skysedge.us/rotarycellphone/index.html http://www.skysedge.us/rotarycellphone/index.html [1] - https://news.ycombinator.com/item?id=22306801 https://news.ycombinator.com/item?id=22306801