I got my first VV mod - a vPower. Hooray! 
I put Kanger's T3 on it and enjoy. After a while, batts go out and I use USB charger to get them back to life. Screw the clearomizer back and it won't work.
First I thought that inner contat got pushed in as it happens on some eGo batts (though I won't expect that on mod). No, it's not that.
I try a simple 510 atomizer I use for dripping and it works. So, I conclude it's about clearomizer. I try it with an eGo batt, but it works.
So I change the bottom part of the claro, atomizer on it was a bit dirty anyway... and it works again on vPower. Until batts are recharged and then we're back on the square two. Clearo works on eGo but not on vPower, while cheap atomizer works on any.
Any ideas what is going on here?

I put Kanger's T3 on it and enjoy. After a while, batts go out and I use USB charger to get them back to life. Screw the clearomizer back and it won't work.
First I thought that inner contat got pushed in as it happens on some eGo batts (though I won't expect that on mod). No, it's not that.
I try a simple 510 atomizer I use for dripping and it works. So, I conclude it's about clearomizer. I try it with an eGo batt, but it works.

So I change the bottom part of the claro, atomizer on it was a bit dirty anyway... and it works again on vPower. Until batts are recharged and then we're back on the square two. Clearo works on eGo but not on vPower, while cheap atomizer works on any.
Any ideas what is going on here?