The original Cricket was a commercial project product made by the Things on Edge company based in Cambridge. This device monitored it’s own battery, temperature,...

This board is principally designed to hold a 32700 sized battery in place, and make electrical contact with it. For some reason battery holders for...

This is a simple idea to re-use a battery from a disposable E-cigarette and make a cheap and useful battery eliminator. In this blog, I...