RE: ON / OFF switch. Yes or no?
No, you dont want anything on an electric plane you dont really need, like DB said,unless you have a charge receptacle with the switch you have to get to the pak anywayand if you do have that its just a ffew more grams to tote around...when I flew parkflyers at the school, I just kept 3 or 4 battery paks to fly with..dont have a fast charger....Rog