Power saving can only be done while stationary on one conventional frequency and have all priorites and closecall disabled. It will keep the receiver turned off and then turn it on long enough to be able to get a steady reception and to check the squelch. It will pulsate and difficult to see the power drop if the sample rate of the power meter are too slow.
It will have a delay until it starts to power save, maybe up to 30 sec, and then to not loose too much of a communication it will have the receiver turned off for something like 500ms or less.
I have the display on my SDS100 to show the USB port voltage, I use no battery, and it flicker between 4,95 and 4,96 and if I open squelch and the volume at 5 to get a higher power draw it shows a steady 4,95 due to the voltage drop in the cable and USB power supply. If I turn battery save on and have it stationary on an analog conventional channel nothing changes in the voltage, it still shifts between 4,95 and 4,96 and the noise level stays the same and doesn't show any zero value or close to it as if the receiver have been turned off. The display updates at about 5 times per second so it should be able to show any battery save functionality. I doubt that battery save are actually functioning.
That max power of 4.48W equals to 900mA and the lowest 3.36 to 675mA
When the battery charge it will add an additional 500mA.
/Ubbe
