Show battery percentage while charging

[DarkendHall]

Shows you the battery percentage whilst the battery is charging and not at full capacity (or whatever batteryStatus === 2 is, please correct me if I am wrong).

Fixes #686

Proposed change:

[alexpargon]

Hey there @DarkendHall !

You are correct! that's the right way to read the battery level, but we disabled it because, during charge, the method we use to read the battery voltage is not to be trusted (as it's receiving an external power source).

so the measurements you will get are not accurate, if you want to try experimenting with those values and seem trustworthy enough for you, please get us back here! so we can open a poll with other users and know what they think about it.

[DarkendHall]

Hey there @DarkendHall !

You are correct! that's the right way to read the battery level, but we disabled it because, during charge, the method we use to read the battery voltage is not to be trusted (as it's receiving an external power source).

so the measurements you will get are not accurate, if you want to try experimenting with those values and seem trustworthy enough for you, please get us back here! so we can open a poll with other users and know what they think about it.

It seemed to display accurate numbers for me during the time it took me to implement the change, although I had to keep wireless mode on. When I turned off the wireless mode it showed up as 1%, but it was showing 70% turned on (both while charging and on battery power).

[alexpargon]

Yes, the thing is that the battery value you get comes from a moving average, so there are still valid values to make the operation for the new %.

the readings that we do are valid between ~10% and ~70% for charging mode, for higher values the charging curves switch between fixed intensity to fixed voltage, and with fixed voltage, we do not know what's happening right now 🤣.

[alexpargon]

The new Raise 2 and batch 3 of the Defy will incorporate a specific chip to monitor charge and battery life, so if the hardware supports it, we will give you much more information about battery life and health.

The new chip is MAX17260 and will enable precise battery monitoring and better reporting.