The ProTek Prodigy 620 Duo is a multi-chemistry charger with two independent 400 watt channels, each with its own independent control panel, blue backlit LCD display, balance ports and sensor ports. It can charge LiPo, LiFe, or Li-Ion batteries up to 6S, 15-cell NiCd or NiMH batteries, and lead-acid batteries up to 20V. With the ability to fast charge, balance charge, and storage charge lithium cells, you can easily tailor the charge process to suit your needs, while individual cell voltage can be monitored during balance mode charging, allowing you to identify an imbalance in the cells and spot a weak cell before it becomes a problem. Other features include a dual-fan cooling system that utilises a push-pull design that will keep the charger cool, even when working at maximum capacity.