Use the DJI 65W Portable Charger or a USB Power Delivery charger for the best results. The hub fully charges one Intelligent Flight Battery in 45 minutes with the DJI 65W charger. Only compatible with the BWX520-2150-14.76 battery model. Place on a flat, ventilated surface, and ensure proper insulation to prevent fire hazards. Avoid touching metal terminals; clean them with a dry cloth if needed. Charge low-power batteries promptly and store them in the hub.