RE: "Blade 400" DX6i timer function not working
It's a royal pain in the rear at first. After messing with it a couple weeks, it gets a little easier... But it's still a royal pain in the rear! I use E-Flite 2100 mAh packs and it's even tighter than the stock 1800 mAh pack and sometimes it only takes a few seconds.... and other times I swear it'll never fit.
You'll just get used to it...