Cameron Sino Replacement Battery for SportDOG Field Trainer SD-400, Field Trainer SD-400S, FR200, SD-350, SD-400, SD-800, Wetland Hunter SD-400

raise repair zone today we're going to fix a sport dog training collar it's one of the shock static voice ones or not voice but tone this one here i plugged it in and it doesn't want to charge the transmitter it doesn't want to charge so here it is ft 100b i think that's the model number i'm not sure anyway when you take off the back there's a bunch of little screws here that goes all the way around and you take that off it's a little phillips screwdriver pop that off and there's the battery right there there we go now what i see in here the red wire now if it's this single focus but you see on there it's kind of a greenish color so i'm thinking it's not making a contact if it doesn't make contact it's not going to be able to charge it's not going to be able to do anything look inside of that connector there looks like the pins are good so we're not going to worry about that part right