nFR9169: Limit the amount of power the modem is drawing from the battery

Question

On the nFR9160, the modem is drawing more power when it can't connect to a tower and is causing the battery to drop below the rail, causing our device to switch off. Is there a register to cap the amount of power the modem is allowed to draw from?

Albrecht Markus Schellenberger · Accepted Answer

Hello Howard, 
 
 thanks a lot for your feedback! 
 GameCodingNinja said: Is there a register I can monitor that indicates the amount of current the modem is drawing? 
 There are no registers for current consumption. But there might be some other alternatives for you to consider:

You can measure the current yourself with a nRF9160 DK.

Have a look at this table , which provides you with an overview of typical modem current consumption use cases.

You can use the nRF9160 Online Power Profiler for LTE for estimation of particular use cases.

You could test %XDATAPRFL , although the usage of this command currently has limited impact on power consumption as its functionality is not completely implemented yet.

I hope this will help you. 
 
 Regards, 
 Markus