Hi, I'd like to buy a LiPo battery now for my HEGduino and soon also for the V2. My questions: In the progress report you wrote " [...] they can still get *VERY* hot nearly instantly when compromised - even with the short-circuit protection. So that makes it a bit of a safety risk even though you will find these batteries in most wearables these days. My issue is I don't have a hard case for this yet, and I am not going to burn a hole in my own or someone's head if I can help it, so I'm trying to come up with something by initial release to make the battery a safe inclusion via some kind of hard case. " Did you find a solution for this yet or when the V2 december batch (which I ordered) ships? Can I buy a LiPo battery that already has a hard case? Would it be any worse to simply use a powerbank ? That sounds safer. On a picture in your progress report there's a LiPo battery with 3.7V and 500mAh . Is that enough for using the HEGduino for up to 45 mins ? And is 3.7V also correct? I don't know anything about EE. Is there something else I need to know about using such a battery for my HEGduino?