It seems the h.p.(s) connection is understood now.---Fast forward to the re-chargable battery "query"!
-----The rechargable battery pack obviously has to be taken out of the detector to charge it--correct?---So, what kind of a waterproof seal/gasket does the battery cover have & is it going to stay in place to effectively protect the batteries from water leakage over the many times they are removed for charging?-----Does this gasket (if that's what it is) stay in place when the battery cover is removed and re-installed or is there a "risk" of it shifting thus breaking the waterproof connection to the battery?-----I hope I am a little "clearer than mud" with my question.
------------Thanks, Del