I used 15 min Epoxy to join my apprentice wings, works great and really very strong, I also used little Epoxy to put the cover on although not required
as it comes with self sticking glue. The complete curing time for the Epoxy was 6-8 hours and I let it sit overnight.
I would not recomend using the ca glue, not sure of its strength.

I have the E Flite 3-4 cell charger, which you can buy separatly for $29.99,