Also needs to power off when the power is low.

*** Bug 5647 has been marked as a duplicate of this bug. ***

Maybe provide a 10-60 second countdown, with a message warning the unit is about to power down due to low battery.  

Currently it just abruptly powers off with no warning.

Created attachment 2392 [details]
Reference artwork

*** Bug 5495 has been marked as a duplicate of this bug. ***

Screens added in r856. Does not actually power off yet.

Fixed in 859, Jive now turns off with a low battery.

This needs testing with a bench supply to make sure it works ok. Can qa please discuss with Caleb. This is how it's meant to work:

Cpcty| Voltage|  A/D Reading
------------------------------ -------
100% | > 4.0V | > 899
90%  | 3.94V  | 885
80%  | 3.89   | 875
75%  | 3.85    | 866
70%  | 3.805  | 855
60%  | 3.749  | 843
50%  | 3.71   | 834
40%  | 3.68   | 826
30%  | 3.66   | 823
25%  | 3.65   | 820
20%  | 3.61   | 812
10%  | 3.588  | 807
0%   | 3.52   | 790

4 bars > 875 (80%-100%)
3 bars < 875 (75%-80%)
2 bars < 855 (50%-75%)
1 bar  < 834 (25%-50%)
RED 0 bars < 820 (10%-25%)
SHUTDOWN  < 807 (10%)  to preserve the battery life span, we definitely don't ever want to draw the battery below 10%. 

The ADC readings may need recalibrating with the P10 boards.


Assigning to Chris as I remember him volunteering to check this once.

We'll punt to 7.0 assuming that the user will upgrade immediately.

Chris: can you check this new behavior?  Or are you set up to do this, Ross?

I've been testing 5 P10 Jives for 3 days charging them and reading voltage with Chris' multimeter as the charge drains, and keeping an eye on the bars on screen. I have yet to notice any discrepancy from Richards comment #7. Each voltage read is accurately within the ranges it should be, according to its present status on screen (bars 1,2,3,4 etc). Also, anytime any of these Jives reaches 3.588V they are shutting down as they should. 

My last comment should have said when voltage dips to 3.588 Jives are *suspending* as they should not shutting down. Also each Jive was tested with v6 fw. Let me know if more/different testing needs to be performed. 

Following Ross's testing I think this is completed. I had left the bug open to remind myself that we need to wake up and shutdown when in suspend mode. I'll make a note of that in bug 6580.

This bug has recently been fixed in the latest release of SqueezeCenter 7.0.1

Please try that version, if you still see the error, then reopen this bug.

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