Battery drain seems too quick on most aircraft. Need some way to not drain the battery while on the ground getting the airplane set up for engine start.
Should be easier to turn on a ground power unit for all aircraft (please separate ground services from ATC!), or even better an additional option under:
Options > Assistance > Aircraft Systems > Unlimited Battery
(Similar to unlimited fuel)
I have it, and am a huge fan of that project. But this option should be part of the sim and apply to all aircraft. Not something dependent on which mod you have.