Ardu Voltage at 4.64 from 5V supply

I was setting up my voltage monitor and noticed that the voltage on the Ardu 2 was 4.64V.

When disconnected the ESC produces 4.96V - Is this voltage drop expected ?

My only concern in that there is 4.64 volts supplied to the RX where the specs say the voltage should be 4.8 - 6V so I'm a little below

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  • 3D Robotics

    APM 2.0 or 2.5? On 2.5, the new power protection circuitry leads to a voltage drop, which is why it ships with a stand-along Power Module that generates the right voltage. 

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