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The device got normally discharged until bme shuts down. Screen always on and initially at 80%, then at full brightness, the process took some 5h from a full battery to shutdown. Below you see head and tail of log created by a slightly modified bq27200.sh 5, as c&p from PC ssh session.
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The device got normally discharged until bme shuts down. Screen always on and full brightness. Watch the bq27200 chip learn immediately prior to bme shutdown. The period time for one logline was 5 seconds.
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Watch the bq27200 chip learn immediately prior to bme shutdown. The period time for one logline was 5 seconds.  
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It's quite unlikely bme just incidentally shut down the device exactly same moment the bq27200 reached EDV1 battery threshold of 3248mV and thus learnt about true battery capacity. Also note about the remaining ~17..20min until battery would reach EDVF, the final discharge voltage at which the device should shut down unconditionally
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<pre>
<pre>
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LOOPMODE=5 RS=22
 
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      mv  RSOC CSOC mA  NAC  CACD CACT TTF  TTE  TEMP
 
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06:33 4164 100  100  -4  1380 1380 1380 0    18900 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  -5  1380 1380 1380 0    15947 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  1    1380 1380 1380 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  6    1380 1380 1380 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  0    1380 1380 1380 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  5    1380 1380 1380 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:33 4169 100  100  1    1380 1380 1380 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4169 100  100  6    1379 1379 1379 0    65535 33  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4135 100  100  -120 1379 1379 1379 65535 688  32  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4140 100  100  -141 1379 1379 1379 65535 586  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4140 100  100  -131 1379 1379 1379 65535 629  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4138 100  100  -150 1379 1379 1379 65535 550  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4138 100  100  -192 1378 1378 1378 65535 431  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4140 100  100  -134 1378 1378 1378 65535 614  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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06:34 4140 100  100  -119 1378 1378 1378 65535 693  31  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
 
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       mv  RSOC CSOC mA  NAC  CACD CACT TTF  TTE  TEMP                                               
       mv  RSOC CSOC mA  NAC  CACD CACT TTF  TTE  TEMP                                               
12:07 3296 15  15  -273 201  201  201  65535 44    30  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0
12:07 3296 15  15  -273 201  201  201  65535 44    30  NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:1 EDV1:0 EDVF:0

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