Tenergy Smart Universal Charger for NiMH / NiCd Battery pack 7.2V - 12V with charging current Selection/Temperature Sensor Smart Charger with automatic voltage detection. Best for charging all RC Car, RC air and Airsoft battery packs 7.2V, 8.4V, 9.6V and 12V. Fast charger with current switch to select either, 0.9A and 1.8A. Deliver full charge within 1 - 2 hours. Current updated Version 2 Worldwide usage with 120-240V AC. Use pulse and negative pulse technology to avoid battery overheating during fast charging, optimized for battery pack's cycle life. Safety protection fuse for over current, short circuit & reverse polarity protection *Meets UL 60950-1 Safety Standards. Buy with confidence, your charger includes a 12-month warranty.