Hello Community!
I am using a CN6009 Boost Converter to take input from an 18650 Battery, boost it to 5V and I’m attempting to supply power to my ESP8266 through it. However, the ESP simply refuses to power on with this configuration.
I have tested powering on the ESP with a wall adapter connected to a sliced USB cable that is providing 5V so I know the pins work and it is possible. I just don’t know why the CN6009 properly tuned and tested to output 5V is not doing it.
Is the converter outputting 5V when not connected to the ESP ? If so, what does it output when connected to the ESP ?
Yes, it outputs 5V when disconnected from ESP. When connected to ESP, it shows ~2.1V
Please post a schematic showing how the converter is powered, any components that configure it and how it is connected to the ESP
Is the battery empty?
No, I have checked with a Multimeter, the batter is charged to 4.01V with 4.2 being the listed Maximum for this battery
What is the battery voltage when the converter is under load ?
If I had a penny for every time I posted a problem here about a connection that was not working for me, and then it magically started working as soon as people asked me about it, I would have 2 pennies, which is not a lot but it is weird that it happened twice
Seems like this site is quite a blessing for me haha, now the circuit is powering up properly. Thank you so much for your help. I am not sure what was the reason it was not working before, perhaps some loose/bad jumper cables might be the culprit….
XL6009E1
You appear to have shown a buck (step down) converter in your illustration. Notice that the input side is close to the chip.
Here, in a boost converter, the output is closer to the chip:
