Fast, safe simultaneous charge; high capacity Sony BP-U60 or SWIT S-8U62 battery packs are ready in about 4 - 5.5 hours. Two-Position charging Dynamic Power Management (DPM) minimizes battery charge time. By dynamically adjusting battery charge current, more current is allocated to the deeper discharged battery. Through this process the batteries are ready to use at about the same time. Worldwide 100-240V AC. Small lightweight package 5.5"x 4"x 1.5". Warranty 2 years parts and labor.