Are you comparing it to other 1-battery mechs? Or comparing to regulated?
If the build is a lot of metal, it's going to struggle to heat it up, regardless of resistance. Throw a 22 gauge single wire wrap in there and it should fire hot.
If that's not it, check all your contact points - clean the screw that hits the battery, check that the bottle is connected snug (it provides leverage for the fire pin), wipe the whole flat part of the top/base that make contact.
I give the cap/base a quick wipe with DeOxIt about once a month - literally less than a drop.
deadlydeep wrote:
Hi got a Coppervape BF and just don't think it hits that hard . Have a 0.14 dual coil with a fully charged VTC5a and it's all a bit weak tbh . Any tips ?