ORIGINAL: Sailplane
aeajr,
Does the Sky King Lost Model Locator work with 2 to 4 cell lipos?
As receiver packs? NO!
As motor packs? Yes, because the ESC or BEC sends 5-6V to the receiver and that is what the Sky King sees.
It won't help as a battery monitor but it will work as a plane finder and for checking for channel conflict. Also keeps you from forgetting to disconnect the batteries. That is important when it comes to lipos.