Yep. The negative contact comes out easy. Just put it in a cloth and gently squeeze it with some pliers. It's best to under do it and have to do it a couple times than it is to over do it and have to try to pull it apart again. This has to be a stupidly easy thing to adjust during manufacturing. I don't know why they don't just make them a bit looser.
What size Allen key do those screws take? The smallest I've got are 1.5mm and 1/16th". Looks like I need something smaller.
I put a battery in without the nylon strap and the door fits fine without rocking. With the strap in the door won't go all the way in and it rocks. Some pretty tight tolerances there. I used a rewrapped battery and it came out OK. One with the original wrap the wrap got messed up on the neg end. Both HG2 batteries. I need to get that neg contact sorted out.