Which ESP32 boards can be used for our battery-operated projects? How can we distinguish between good and bad designs? And how do these boards compare to the ones tested in earlier videos? This time I have a global boards selection coming from Australia, Bulgaria, China, and the USA I am a proud Patreon of @GreatScott!, @ElectroBOOM , @Electronoobs , @EEVblog , and others. No Docker, No Microsoft Teams, Zoom Links: Comparison Table: https://docs.google.com/spreadsheets/d/1Mu-bNwpnkiNUiM7f2dx8-gPnIAFMibsC2hMlWhIHbPQ/edit?usp=sharing Diagrams and datasheets: https://github.com/SensorsIot/ESP32-Battery-operated-boards Boards (alphabetically): Adafruit Feather Huzzah: https://www.adafruit.com/product/3405 EzSBC IoT controller: https://www.ezsbc.com/product/esp32_bat-battery-charging-pro/ Olimex: https://www.olimex.com/Products/IoT/ESP32/ESP32-DevKit-LiPo/open-source-hardware TTGO T8 S2 with display: https://s.click.aliexpress.com/e/_9Q9avL TTGO T8 w/o display: https://s.click.aliexpress.com/e/_9gyi97 TTGO T18: https://s.click.aliexpress.com/e/_AXgarf Unexpected Maker: https://unexpectedmaker.com/ Battery Life Calculator: https://of-things.de/battery-life-calculator.php The links above usually are affiliate links that support the channel (no additional cost for you). Supporting Material and Blog Page: http://www.sensorsiot.org/ Github: https://www.github.com/sensorsiot My Patreon Page: https://www.patreon.com/AndreasSpiess Discord: https://discord.gg/JfgDSa8 If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission of your purchases to buy new stuff for the channel My Amazon.com shop: https://www.amazon.com/shop/andreasspiess For Banggood https://bit.ly/2jAQEf4 For AliExpress: http://bit.ly/2B0yTLL For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp https://www.facebook.com/profile.php?id=100013947273409 https://twitter.com/spiessa https://www.instructables.com/member/Andreas%20Spiess/ Please do not try to email me. This communication channel is reserved for my primary job As an Amazon Associate, I earn from qualifying purchases #no#midroll#ads