If your manual switch gets hard to press and doesn't engage

[kLAcK]

... you have overtightened your atomizer. This causes the innards of the battery to rotate, misaligning the button and inner switch. Of course I didn't figure this out until I completely destroyed my battery to find the problem. So be careful!

 

[Cellmeister]

It's Usually The Batt Going Into The Charger Causing The Issue, Cuz The Charger Is Easier Too Overtighten.. Always Tighten To Just Touch, No More.

~Keep Vapin~!