Description Use and maintenance of the charger: 1. When charging, first connect to the battery, then connect to AC power; after full charge, disconnect AC power, then remove the battery plug. Removing the battery plug during charging, especially when the charging current is high (red light), may damage the charger. 2. When the LED light turns green, continue charging for 2-3 hours. 3. Do not fully discharge the battery before charging, as this may prevent proper battery protection and could cause damage. 4. For long-term shallow discharge use, perform a deep discharge approximately every 3 months, known as reconditioning, which helps activate materials within the battery. Deep discharge refers to riding until the controller's low-voltage protection activates. 5. Use the charger in a dry location. 6. When not in use, disconnect the charger from the power supply. 7. Confirm compatibility with your battery. This charger is designed for lithium batteries. Do not use with LiFePO4 batteries, as the charger may overheat. Plug Type: EU Plug, suitable for use in Indonesia, Germany, France, Spain, Italy, and other countries with EU socket standards. This charger is compatible with Ninebot ES1 Scooter and Ninebot ES2 Scooter. 100% new and high quality with strong protection features. Input: 100-240VAC, 50/60Hz Output: 42V 2A Charge Indicator: Red light during charging, green when fully charged Safety Protections: Over-voltage protection (OVP), Over-current protection (OCP), Overload protection, Short-circuit protection Material: Plastic Color: Black Package Contents: 1 x Charger Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm. Shipping: All orders are shipped within 3 business days after payment confirmation. Delivery typically takes 8-12 days, depending on destination. For any questions, please contact us. We respond within 24 hours. Thank you for your purchase. We aim to ensure your satisfaction.