EEVblog

Review of the BattLab One open source battery life estimator tool from Bluebird Labs. A tool that allow you to measure the current and power consumption of your product in active and sleep modes and do “what if” analysis on estimating product battery life.
https://bluebird-labs.com/
https://www.tindie.com/stores/bbird/
Forum: https://www.eevblog.com/forum/blog/eevblog-1331-battlab-one-review/