Battery Level Check

RE: Battery Level Check

awneil — Mon, 20 Mar 2017 12:36:27 GMT

Google "coulomb counter", "gas gauge", etc, ...

RE: Battery Level Check

Jim — Mon, 20 Mar 2017 10:10:46 GMT

OK thanks for the responses, is there an alternative then awneil?

RE: Battery Level Check

awneil — Mon, 13 Mar 2017 21:48:31 GMT

Take a look at the graphs in this post to see why!

devzone.nordicsemi.com/.../

RE: Battery Level Check

awneil — Mon, 13 Mar 2017 21:44:57 GMT

But note that measuring the battery voltage may not give any useful indication of the remaining battery life!

RE: Battery Level Check

bjorn-spockeli — Mon, 13 Mar 2017 10:05:24 GMT

If you have a battery that has a nominal voltage above the maximum supply current of 3.6V, then you will have to add an external voltage divider in order to measure the battery voltage, as described in this blog post.

If the batter has a nominal voltage below 3.6V then you can use the ADC measure the battery voltage directly, see this github repo for ADC examples for the nRF51 series.

Best regards

Bjørn

RE: Battery Level Check

xueshen — Sat, 11 Mar 2017 09:47:38 GMT

I use CR2032 coin cell, the same question from me.