Bought this mic new way back when and have never had a problem with it until now. I bought a turner +3 desk mic for parts the contact points in the 100 where badly pitted so i used the points from the+3 which where like new. The mic works fine but it seems to be eating batteries alot sooner then before. I have checked all my soldered joints they look good and i dont see anything touching anything it shouldnt be. The mic is being used on a Messenger 223 the battery is only lasting about 15 days and with not alot of use. Appreciate any help Thanks :roll: