NS-3 AC charger for nickel-cadmium batteries. It used to charge in 4-5 hours, but suddenly stopped working and is offered as parts. I used it as a charger for the single-3 nickel-cadmium batteries for the transmitter and receiver power of my GP car, but it no longer powers on. - Model Name: NS-3 AC CHARGER - Compatible Batteries: Nickel-cadmium batteries (AA size) - Charging Time: 4-5 hours - Included: Original box (Instruction manual not included.) Thank you for viewing.