I want to thank everybody for their help, it's greatly appreciated! I was at our local pharmacy today and noticed they have Eveready Zinc/Air batteries but they are 1.4v, not sure if they'll fit properly but if they do I'll be able to use these as an alternate to B&H's PX625 supply to determine if it's the batteries or my meter that is not working. If they are the solution to the problem how will the 1.4v affect the meter?