Product Specification: Product Type: for Craftsman v-20 Replacement Dual Port Battery ChargerModel Number: CMCB124Input: 100V-240V AC, 50-60 HZOutput: 20V DC, 4.0A DC TotalUSB Port: 5V, 2.1A DC Replacement for CRAFTSMAN V-20 Battery Charger: CMCB104, CMCB124, CMCB100, CMCB102, CMCB101 Compatible with CRAFTSMAN V-20 Series Battery: (DON'T fit for 20V max Bolt-On & DieHard series) CMCB204, CMCB204-2, CMCB202, CMCB202-2, CMCB201, CMCB205, CMCB209 Advantages: OVERLOAD PROTECTION: Charger protects battery cells for long lifeQUICK RE-CHARGE: Charges for V-20 2.0Ah Lithium Ion batteries in 60 minutes or less for jobsite efficiency, dual port chargers 2 batteries at same time.BATTERY CHARGE FEEDBACK: Charger includes LED charging indicatorVERSATILE COMPATIBILITY: Charger is compatible with all CRAFTSMAN V-20 power tool and outdoor tool batteriesBuilt-in air-cooling fan to cool the batteryBuilt-in 2 USB Ports design for charging low-power electronic products, like smart phone, iPad, smartwatch Unique Protections: No charging to a defective battery.Automatically Cut off when Short-circuit.Automatically Stop charging when charger faulty detected.Automatically stop charging when over-charging. 5.stop charging when overheat LED indicator communicates status Guide: Light off -- Power onGreen Flashing -- ChargingGreen Solid -- Fully chargedRed Solid & Green Flashing -- Hot/Cold Battery Package list: 1 * DONGPUCUN dual port 20V battery charger for Craftsman v20 battery (Battery is not included)1 * User Manual Storage method: Keep charger away from heat and metal accessories.Please don't stay battery on the charger during storage.Don't store in the damp and direct-sun exposure.Keep away from non-adults.