Calculate the estimated battery life for your next diy electronics project. This can be used for Raspberry Pis, Arduinos, ESP8266 Wifi modules like Wemos, Huzzahs, Feathers and so on. If your device does not sleep, then simply set the sleep time to "0". Results may vary from real life :-P
Inputs marked with a * (asterisk) have switchable units, change with a click on it. The results will be presented automatically.
Videos with explanations of a use case made by the incredible Andreas Spiess