Thingy91 battery fuel gauge

[AndrewR]

Is there a way to get the battery charge % on the Thingy91?

[Martin Lesund]

Hi Andrew,

You can check the battery voltage with the AT command AT%XVBAT

Best regards,

Martin L.

[AndrewR]

Thanks Martin.

I got this AT command to run and it runs successfully. It returned what I assume is millivolts. I have seen values of 4430, 4438, 4434. I am under the impression that a LiPo battery like the 1 connected to the thingy91 maxes out at 4.2 volts or 4200 millivolts. I'm not sure if I am looking at this correctly. I will try to drain the battery to see if I can get it under 4400 and report back. If I am missing something please let me know.

Also I found a LiPo voltage to charge % relationship chart. If there is a more direct method of converting voltage into % charge please let me know.

Capacity %	voltage
100	4.2
95	4.15
90	4.11
85	4.08
80	4.02
75	3.98
70	3.95
65	3.91
60	3.87
55	3.85
50	3.84
45	3.82
40	3.8
35	3.79
30	3.77
25	3.75
20	3.73
15	3.71
10	3.69
5	3.61
0	3.27

[RicardoPereira]

Hi, 

Can i ask you where did you find this chart ?