YKS 3 -Battery Parallel Charging Board Plate Multi Battery Charger for DJI Phantom 4 Quadcopter Suitable for DJI Phantom 4 Quadcopter Rapid Multi-battery charger plate,3 batteries charge at same time How to use: 1. Connect 1-3 batteries to the plate. 2. Connect the plate to charger. 3. Connect to power. Warning: Never move the charger plate during charging Original charger Adapter: 17.4V, 5.7A, Specialized charger adapter: 17.4V, 15A What You Get: Multi Battery Charger * 1, welcome guide, professional friendly customer service