Share your experience!
/t5/Xperia-Z3/Update-23-5-a-1-291-battery-optimization/m-p/1149412/highlight/true#M34217
Are you talking about the charging optimization that has been recently brought to Z5?
Precisely. Just today has arrived, via OTA, the .305 firmware.
My phone is 15W40 if I remember well.
With optimization has been charged to 4.277 volts: tomorrow I will try to disable the optimization, check the voltage, and update this post. It draws less current too: now is around 140mA against the 180mA of the previous firmware.
Now Sony should really fix the channel separation in FMradio and this would be great device.