Gen Energy G-C100 6A fast charger charges four V-Mount batteries simultaneously. The aluminum housing helps reduce heat during operation. With Gen Energy batteries above 98 Wh, it operates in fast-charge mode at 6 A. Manufacturer tests with a Gen Energy 12A 290 Wh battery show about 5 hours to reach 100% charge. Batteries rated 98 Wh and below automatically charge in 3 A mode. The unit includes overheat protection. Four indicators in 20% steps allow monitoring for each battery. Weight: 4 kg.