Loading... Please wait...Charger for use with most SportDog Remote Trainers. Input: 100V-240V AC 50-60Hz 0.3A max Output: 12V DC .25A Dual Lead Charger for collars and transmitters of the SD 400, SD 400s, SD 800, SD 1800, SD 1850, SD 2000, and SD 3200. Also fits the collars only on the SD 1200, SD 2400, and SD 2500.NOT recommended for use with the SportDOG SBC-10r Bark Control Collar. Does NOT work with the SD 1825 or SD 1225.