About Core SWX MACH-Q4S Featuring four independent charge bays, the Core SWX MACH4 Charger is capable of charging four batteries simultaneously by focusing on each individually. Offering the fastest charge speed on the market, the charger can completely charge four 98Wh batteries in approximately 90min. Red and green LEDs indicate charging/complete status. Supporting 90-240 VAC input voltage, the Mach4 is worldwide compatible. The new low profile design is over 1/2" thinner than comparable models. The charger features a recessed carry handle that makes transport convenient. The housing is made of aluminum, providing for a robust build and made in the USA.