🔋 Compatibility: Perfectly compatible with Pet collars of PetStop, DogGuard, Perimeter Technologies and eXtreme invisible dog fence systems models DG-3000, DG-5000, DG-9000, PCC-100, PCC-200, PTPIR-003, PTPFS-003 receivers. 🔋 First Choice Batteries: This 6 Volt battery is assembled with 2 CR1/3N batteries. Upgraded high capacity of 200mAh. Provides longer battery life. 🔋 High-quality material: 6 Volt Lithium ion 2CR1/3N battery is made of unique high-quality material, the quality is strictly controlled in the production process, and the unique high-density material gives the battery a high capacity of 200mAh. 🔋 Reliable performance: Equivalent to 4LR44, PX28A, A544, 28PXA, 476A, 4G13, GP476, K28, V28,. L1325, 1414A, V4034PX, PX28L, K28L, L544, L544BP, V28PXL, 2CR1/3N, CR28L, 1406LC. 🔋 【Specifications:】Type: Lithium ion Battery; Voltage: 6 Volt; Capacity: 200mAh; Length: 21mm (0.82 inches); Diameter: 11 mm (0.43 inches). Package includes 6 Pack 2CR1/3N Battery. 2CR1/3N 6 Volt Battery, 200mAh High Capacity Lithium ion Batteries Compatible with Pet Stop, Dog Guard, Perimeter and Extreme Dog Collars, Two CR1/3N 6V Batteries Pack (6-Pack)