Yosoo Upgrade Multi Battery Rapid Charger Adapter Plate Parallel Charger Charging Board For DJI Inspire 1 Quadcopter Rapid Multi-battery charger plate,3 batteries charge at same time! Compatible with TB47 (4500mAh) & TB48 (5700mAh) Battery Can work with DJI original charger and third party charger.LED displays voltage and the rest charging time (only when using the original charger).Battery light will be off when the battery is fully charged Use step: 1. Connect 1-3 batteries to the plate.2. Connect the plate to charger (While using the original charger,please press down the blue button before connecting to the charger). 3. Connect to power. Warning: Never move the charger plate during charging Package content: 1 x Charger Board only (Charger & Battery not included)