Hey all I have recently purchased my as new OM1n and although the lens that came with it is a bit rough the body is as described. Mint+++ So it came with a PX625 battery and I switched on the meter which sprung to life. The battery is a 1.5v so I am aware that I need the CRIS convertor to use a 1.3v silver battery for correct exposure. The needle was jittery and swung violently on occasions so rather than delve into the depths and start checking wiring and terminal etc. I thought I would try a commonly substituted hearing aid battery just to rule out the possibly dodgy battery that might have come with the camera. So heres the thing. I put a 1.5v hearing aid battery in and once again the meter swung into life and seemed steady. That was enough for me to go ahead and order the proper battery convertor from ebay. I turned off the meter and the meter was still metering and reacting to both aperture and speed settings. I took the battery out and it is still metering and reacting to changes in settings. Does anyone know if a charge is held in the meter for a while. I have left it half an hour and it is still metering. I was expecting the meter to immediately switch off but it has not done. It did switch on and off with the first battery so how comes it is still metering without a battery. Imagine if I had a fully functioning meter OM1n which didn't need batteries. How cool but also how impossible. Any ideas folks??