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ESP8266 Feather Huzzah Battery backup not working
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ESP8266 Feather Huzzah Battery backup not working

by Dclark3774 on Tue Nov 13, 2018 4:36 pm

I recently purchased a Feather Huzzah board, and I have a 3.7V 1000mAh battery that I connected to it. I power up the board and get the charging led, and I uploaded a program to have the red LED flash every second to test the battery backup. I charged the battery overnight and when I unplugged the usb from the board, the program immediately stopped running. I know the battery is working correctly because it is reading 3.7V on a multimeter when disconnected. Is this a possibly a bad board? Or is there something I am missing? Thanks.

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Re: ESP8266 Feather Huzzah Battery backup not working

by adafruit_support_mike on Wed Nov 14, 2018 12:41 am

Post a photo showing your hardware and connections, plus the code you're using (between CODE tags please). 800x600 images usually work best.

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Re: ESP8266 Feather Huzzah Battery backup not working

by Dclark3774 on Wed Nov 14, 2018 9:19 am

Here are the images.
Attachments
IMG_0096_1_800x600.jpg
The writing on the battery is as follows:
- PL 503450
3.7V 1000mAh
+ 2018 09 07
IMG_0096_1_800x600.jpg (154.63 KiB) Viewed 100 times
Capture_600x800.png
Capture_600x800.png (150.11 KiB) Viewed 100 times

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Re: ESP8266 Feather Huzzah Battery backup not working

by adafruit_support_mike on Fri Nov 16, 2018 12:37 am

That LiPo has the wrong connector polarity.

There are two ways to arrange the positive and negative wires in a JST-PH2 connector, and unfortunately you can find both of them on the market. There's no real standard, and different companies choose to do things different ways.

All of our boards are designed for connectors wired to put the red/positive wire closer to the BAT pin, and the balck/negative wire closer to the mounting hole in the corner of the board. The LiPo above has the opposite connections.

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Please be positive and constructive with your questions and comments.