MY DIY ULTRA-LOW POWER ESP32 DEV BOARD, is a 4 year battery life possible?

Video Description

I've made a DIY ultra low power ESP32 development board, it looks nice, but is it any good? To find out I compare it to a cheap ESP32 C6 super mini... The deep sleep current is ten times lower! With some careful design and coding it should be possible to get a 4 year battery life!! This is not a tutorial, I took some shortcuts with the board that you shouldn't copy! Check out my blog for a detailed design overview of the development board, including the schematic and PCB layout, there's also a lot more info on my recent projects: https://circuithelper.com/ Here's a link to the mini hot plate I used to re-work the USB-C port: MHP30 PD65W Mini Hot Plate Digital Soldering Preheating Rework Station (434 sold, 4.9*) https://s.click.aliexpress.com/e/_c3YUSfnV There's also the low temperature solder paste: Lead-containing and 181-degree silver-bearing solder paste (1000+ sold, 5*) https://s.click.aliexpress.com/e/_c4MxvGAr I also picked up some lead-free solder paste (227 C melting): Lead Free High-Temperature Solder Paste (3000+ sold, 4.9*) https://s.click.aliexpress.com/e/_c422kgpH For the soldering microscope, here are the components I used: HD1080P HDMI VGA Industrial Video Microscope Camera (4.7*, 60 sold) https://s.click.aliexpress.com/e/_oD10RtT Magnification Adjustable 180X 150X 130X Zoom C Mount Lens (4.9*, 371 sales) (get the x180 version) https://s.click.aliexpress.com/e/_ooByeXb SmallRig P96L RGB Video Light Portable Metal LED (5*, 19 sold) https://s.click.aliexpress.com/e/_oBrd4M5 (My favorite!) TS80P Mini Smart Portable Digital Soldering Iron (4.7*, 63 sold) https://s.click.aliexpress.com/e/_okuOplT To clean the tip, I like these copper wool things: Desoldering Cleaning Ball (4.9*, 2000 sold) https://s.click.aliexpress.com/e/_oEkgdY1 To hold the iron when not in use, I use this stand: Soldering Iron Bracket (4.9*, 4000 sold) https://s.click.aliexpress.com/e/_olF15yh