Got the nexus extended battery in the mail today from amazon ($20!) and put it in my phone. Took a bit of sanding my battery cover (and maybe a little of my battery... maybe
) and i got it to fit. Its tight, but I like it like that.
the best way i found to get it to stay snapped is to do the top and bottom, then the left side, and while holding the left side down with your left hand, snap the right side in.
Now hopefully we see some battery improvements...
*the reason i worked so hard to get it to stay shut without a case is that i run naked. All i have is a screen protector, and I wanna keep it that way! IMO cases ruin the sleekness of the phone.