Watson 4-Hour Rapid Charger for AA and AAA NiMH and NiCd Rechargeable Batteries Charges 2 or 4 AA or AAA Batteries | Charging Time: Approx. 100-280 Min Delta-V Microprocessor for Full Charging | Safety Guard Timer Prevents Overcharging 2 Charging Indicator Lights | 100-240VAC Input Whats In The Box: Instruction Manual, Limited 1-Year Warranty