UpStart Battery Motorola EP450 Charger - Replacement for Motorola NNTN4851A Two-Way Radio Chargers (100-240V) Replacement Motorola EP450 Charger Replacement for Motorola NNTN4851A 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!