The Efest BLU6 Charger has six separate charging ports that are capable of charging all types of Lithium batteries (Li-ion, Li-Mn and Ni-Mh). Each slot is also fully kitted out with an independent monitoring and charging system. All current statuses of the batteries can also be easily monitored via a high-end, very crisp OLED display. The first and final battery slots (1 and 6, respectively), can charge at 2.0A max for two 2650 0/2665 0 batteries. The charger is compatible with a vast range of Li-ion batteries, and can identify each type (10440, 14500, 16340, 16650, 17650, 17670, 17350, 18350, 18490, 18500, 18650, 26500 and 26650). Please note that caution should always be applied when using Li-ion battery cells, as they are extremely sensitive cell units, prone to over heating or exploding if mishandled. The user of this battery unit should have sufficient knowledge of Li-ion rechargeable batteries before use. Always read the manual before using this charger.