Dual Monitors with MacBook Pro fails using the battery

Hi guys
I am sorry I am new with Apple and need a help from you guys. I have a MacBook Pro (retina) and connected two monitors to it, using Thunderbolt plugs.
It works fine when I close the lid and one monitor gets the Apple OS and the other I run Windows (VMWare). The problem starts when I remove the power
from it and run using the battery. Monitors got blank display and I have to plug the power back to the MAC, in order to get the OS back. I've tried any combination on the System Preferences/Display and Energy Saver. No go!
Any ideas?
Thank you!

I had the same issue a few months ago when I tried connecting to external monitor, it is only possible to run external displays from a Macbook Pro while the power cable is attached, if you try and connect to external display without having the charger attached the external display will flash your desk top for a second and then your Macbook Pro will go to sleep. Hence connect your charger every time you wish to connect to external display, its not a problem with your Macbook Pro, it's just the way of Apple. Hope that helps.

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Dual Monitors with MacBook Pro fails using the battery

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