RE: Extra 330L-EP Extreme 3D RC Acrobatic Plane ARF
What is wrong with the packs you talked about earlier?
They will work fine for the Monster .32 or Monster .46 motors.
I'd go with those 5000mAh packs.
Later you can use two of these in series to power a .90-1.20 size plane with a bigger motor.
The Extra 300 EP loves those packs IMHO. The C.G. was spot on with them.
Check my layout in the pictures.
BTW: Don't forget you'll need to order connectors!
I'd order a package ( 12 pairs+ ) of those bayonet style bullet connectors the batteries use.