I did an almost the same experiment this time charge limit set to 100%, and the result is a bit unusual.
Same gaming on performance mode, much less battery power fluctuation compared to the link above
chargecontrol stayed NORMAL consistently instead of flipping between NORMAL and IDLE
$ sudo ectool chargecontrol
Charge mode = NORMAL (0)
Battery sustainer = off (-1% ~ -1%)
chg_voltage 17800mV instead of 17600mV, chg_current 0mA instead of 2740mA
$ sudo ectool chargestate show
ac = 1
chg_voltage = 17800mV
chg_current = 0mA
chg_input_current = 2700mA
batt_state_of_charge = 100%
Both Desired Voltage and Desired Current went zero
$ sudo ectool battery
Battery 0 info:
OEM name: NVT
Model number: FRANGWAT01
Chemistry : LION
Serial number: 0035
Design capacity: 3915 mAh
Last full charge: 3608 mAh
Design output voltage 15480 mV
Cycle count 187
Present voltage 17291 mV
Present current 0 mA
Remaining capacity 3608 mAh
Desired voltage 0 mV
Desired current 0 mA
Flags 0x07 AC_PRESENT BATT_PRESENT DISCHARGING
Present voltage displayed well below 17.6V, normally it went from 17.58V to 17.56V after charging to full.
