BRN404 vs BRN404X - 2.4X increase in power consumption?

@rickkas7 - Just following up on this one. I noticed the latest Device OS 5.5.0 release notes in this thread makes reference of a new enhancement that references low power mode.

  • [Cellular] Enables UPSV=1 low power mode for R510 when idle for >=9.2s #2674

Is this what you were referring to? Is this some hybrid eDRX mode or what exactly is UPSV=1 Low Power Mode vs eDRX? I skimmed through the spec sheet of the R510 manual and seems like UPSV=1 allows for low Power mode of the radio correct?. I tried reading through the github repo pull request #2674 as details on how to leverage this new mode? The wording sure seems like it will allow a lower power mode though and this otti plot from the github pull request looks promising.

Is there anything special we need to do within our sketch to leverage this UPSV=1 Low Power mode for R510? Am I reading this right that we should expect 14.5 mA?

I'll try to repeat some tests later this week/next weekend. I'm excited to see the progress being made to address this by you and the team and Particle!