Vertex FNB-64 Battery - Replacement for Vertex FNB-83 Two-Way Radio Battery (1600mAh, 7.2V, NI-MH) Replacement Vertex FNB-64 Battery Replacement for Vertex FNB-83 Two-Way Radio Batteries One Year Warranty Capacity: 1600mAh, Upstart Battery Brand On Sale for a Limited Time!