Whenever I think my atomizer is dead, the first thing I do is take off the cartridge and suck directly on the atomizer. No vapor.....I try it on another battery just to be sure.
I do this because I have had
batteries that actually light up when I suck on it so it seems like the battery is good so the atomizer must be bad....but when I tried it on another battery it worked. Could be a bad connection...or could be the battery still lights up sometime even though it's on its way out. Always good to double check 'em.
Sometimes blowing out both ends and/or cleaning them revives them too. Funny things, those atomizers
Lu