I am not using a dummy cell I added a copper pipe to the tailcap and soldered the spring to it.
I cleaned my connections so i guess something is a little wrong with my driver. I will keep using it that way though, but can't keep it on for a long time, because it gets hot after a few minutes.
I cleaned my connections so i guess something is a little wrong with my driver. I will keep using it that way though, but can't keep it on for a long time, because it gets hot after a few minutes.