This SportDOG Brand® Transmitter battery kit for SD-425 Series transmitters includes a rechargeable battery, Operating Guide, gasket, and screwdriver - everything you need to install a new battery on your SportDog Handheld.
Works with:
FieldTrainer® 425, (SD-425), 425S (SD-425S), 425X, (SD-425X), 425XS (SD-425XS) (FT-125 transmitter)
WetlandHunter® 425 (SD-425CAMO), 425X (SD-425XCAMO) (FT-125W transmitter)