Power Module different readings APM / Pixhawk?

Why is the APM Power Module limited to only 60A with the Pixhawk/PX4, where it gives up to 90A on a APM?

What is the Output format for the Voltage and Current. PWM? or actual voltage?
What is the output range.

What I want is to modify the Power Module to measure up to 150A.

I had been contemplating putting a low resistance shunt in parallel with the present sensor resistor.

Then I was stumped by the spec limiting the reading to 60A on Pixhawk as opposed to 90 on APM.

I thought it would be as simple as putting a shunt and changing the Amp_per_volt parameter.

Hi,

You can use attopilot:
copter.ardupilot.com/wiki/common … to_Pixhawk

The 3DR module output is voltage and the range is from 0 to 5V

I guess the 60A in the Pixhawk is because the ADC is 3.3V and 5V in APM.