Autel EVO II Battery Charging Hub acquires real-time electric current data and can charge easily up to 4 batteries and up to 2 batteries simultaneously, all while optimizing the charge and redistributing the load for each battery. <br><br> The Autel EVO II Multi-Battery Charger comes with Parallel charging mode and Sequential Charging mode that offers you choices how you would like to charge the batteries. <br><br>With smart ring light indicator showing the charging status or identifies errors, charging multiple batteries is easy and smart. <br><br>Autel Robotics EVO II Battery Multi-Charger is compatible with EVO II Series batteries only.