<ul><li>Rechargeable Batteries Compatible with SportDOG SAC54-13734</li><li>Works for SportDOG FieldTrainer 425 Transmitter Dog Collar and many other models</li><li>Li-Pol, 3.7V, 200mAh</li><li>These batteries are made with high quality Japanese cells, they are designed to meet or exceed the original battery performance.</li><li>Long Lasting, Ultra Hi-Capacity Batteries - Limited 3-Year Warranty</li></ul><br><br>

Synergy Digital Dog Collar Batteries, Compatible with SportDOG FieldTrainer 425 Transmitter Dog Collar, (Li-Pol, 3.7V, 200mAh), Pack Includes: 2 x SDDC-P1142 Batteries