the easy way is with this online tool , for creating a .apk file for android.
this apk you can copy via usb to your device and install it there
or upload to google play if you have a account there.
at google play you can upload it as alpha or beta and only your testers
can see it.
https://developer.thegamecreators.com/android/create_apk.php
the current workflow is send media drawer to zip,
fill out the form and wait for download the apk file.
the sync command have a parameter for battery saving.
maybe reduce the frame rate too.
AGK 108 B19 : Windows 8 Pro 64 Bit : AMD Radeon HD 6670