I have a sigelei 50watt vw box mod. Quite often the ohm fluxes to 8+ which makes the volts Flux to 6+, which takes a fully charged battery down to about 25%. I was concerned if this draws more amps from the battery. I never vape when it's that high, only way I found to fix it is pushing the fire button for a nano second and it readjusts itself, sometime down to 5, other times back down to whayever I'm actually set at. It'll stay there for quite some time or it'll continue fluxing for 10 fires. I emailed sigelei back it, but no response yet.