Also possible that a drip tip would help. I started on 901s, too....then moved on to other, more powerful units. I agree with the other posts; switch atomizers, try dripping, make sure the battery is fully charged, clean it well, etc.
Hope this works for you; I'm 100% with vaping for over 6 mo. and loving it!
TVree
Hope this works for you; I'm 100% with vaping for over 6 mo. and loving it!
TVree