UpStart Battery Kenwood TK-3100 Charger - Replacement for Kenwood KNB-14, KNB-15 Two-Way Radio Chargers (100-240V) Replacement Kenwood TK-3100 Charger Replacement for Kenwood KNB-14, KNB-15 Two-Way Radio Chargers Upstart Battery Brand, One Year Warranty 100-240V autosensing for world wide use For NICD & NIMH batteries only. Will not charger Lithium-Ion batteries. On Sale for a Limited Time!