I have been using my Dive Pro lights for a couple of years with good results. One of the batteries is now acting weird. When I screw the battery into the light head, basically the battery acts like it is a fraction too small. So I can turn the battery and there is no engagement with the thread. I can also push the battery much further in to the light head than normal. The O rings are new this season and are as issued with the lights.
Not sure what can be done. I was diving today and the lights works fine. Will some PTFE tape on the thread solve things?
Other solutions accepted.