Well SAG, response to my ticket was to try raising the post, as Morandir suggested. This, I have done, right up level with the top of the threads, and recharged. I am using it tonight to see how this goes. So far it has not missed any inhalations. I shall report back when I find out how long it holds its charge now.
Jinxed myself! Immediately after my last post I went out for a vape, and you guessed it, battery starts missing again. So I shall write back to the lovely V4L purples and let them know.