From a battery life standpoint, the answer is not as easy as saying "the batteries will last for two years". The answer really depends upon the number of actuations that the controller operates over a given period of time. The chart below provides the maximum on/off actuations based upon the period of operation. If you want the batteries to last one year, the maximum number of on/off actuations is 7,300.
|Controller||Stations||Actuations Per Day||Battery Type||Battery Life (Years)|
|XCH-600||6||6||6 AA||2 to 2.5 Years|
|XCH-1200||12||12||6 AA||1 Year|
|XCH-600-SS||6||6||6 C||4.5 to 5 Years|
|XCH-1200-SS||12||12||6 C||2 to 2.5 Years|