1. Charger fast cooling design, continuous heat dissipation, can extend the life of the battery / charger, safe charging 2. With LED power indicator: - Standby: red light on long - Battery failure: red light, green light blinking - Battery charging: red light on long, green light flashing - Charging completed: long green light 3. Input voltage: 100V-260V 4. Output voltage: 12V-18V 5. Charging current: Li-ion 3A, Ni-CD / Ni-MH 2A 6. Applicable products: for RYOBI 12V-18V lithium battery or nickel battery charging