The Elite Force 8.4v Smart Charger is an inexpensive, reliable charger that quickly charges NiMH batteries while protecting from overcharging that occurs with standard wall chargers. This charger has a simple LED indicator that changes from red to green once the attached battery is fully charged. Features: 300 mAh output Over voltage and over current protection Charges 8.4v NiMH batteries Trickle-charge keeps batteries fully charged after the charging cycle is complete Small Tamiya plug Compatibility: 8.4v NiMH batteries ONLY