Receiver packs

[GorillaMaxx360]

OK guys i had a few questions for you.

1.)Instead of using a external ubec with my quark can i use a extra battery pack like a receiver pack.
2.) i will be running anywhere from 14.4v to 19.2v would it be safe to run a receiver pack with my 333oz servo on this voltage with an added receiver pack
3.) when using a receiver pack does it act like a ubec (external) and just give voltage to the servo.
4.) how would i use this. What do i need to do to make it work. I know with the quark and a ubec you just cut the red wire to disable the bec, but what do you do with a receiver pack.
5.) does anybody here use a receiver pack. Got any info.

The reason i want to use a receiver pack is because i already have one and i just want to keep the electronics as simple as possible. Ii know a ubec is not that completed it is just one more thing that can go wrong (not saying it will it is just, i am not that familiar with this piece of equipment) and one more thing that i have to solder. Would using a receiver pack fix this issue and allow me to have power for the servo safely and be reliable.(weight does not bother me) Thanks guys.