Sequentially charge up to four batteries with the Battery Charging Hub for Phantom 3 Quadcopter. The hub works by connecting to the quadcopter's charger and power cord. It starts by topping off the battery with the greatest charge, then progresses to the next most charged battery, and so on. The entire process is monitored and each battery's status is shown using LED indicators.
Note: This is a sequential charger; i.e., it charges one battery at a time.
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