Don't trust Lipo bags. I use Lipos in other hobby models and actually had one burst and the bag melted and flames came out. Good thing it happened outdoors.
Any metal box is actually better and your best insurance.
Best Lipo charging box
Safely charging and storing your Lithium Polymer (Lipo) batteries. - YouTube
Bags - Forget them all
LiPo Bags - YouTube
Last edited by SuperHog; February 5th, 2014 at 20:54..