We been shipping our Standard Transmitters for RailBoss 4 and TrackSide R/C with a single 3 volt CR2032 coin cell battery for years now. They work great in most aspects: long lasting, light weight, easy to find replacments. However, the one nagging problem has been infant mortality. Every once in awhile, we test a transmitter prior to shipment, including measuring the battery voltage, and all is well. But then we get a call from the customer .... dead on arrival or shortly after startup. Not good. We think the source of the problem is the quality of the batteries.
So, all RailBoss 4 transmitters have been redesigned to take two 1.5 volt AAAA Alkaline batteries, the same as our Long Range Transmitters use. This should improve both reliability and batttery life. Since AAAA batteries may be a bit harder to find, we have made them available here on the website if you can't find them locally. AAAA