RAPID CHARGING - Quickly replenish your Nikon EN-EL20 batteries with a 600mA output, minimizing downtime and maximizing shooting time, whether in the studio or on location. VERSATILE COMPATIBILITY - This smart charger is designed with an interchangeable plate for Nikon EN-EL20, ensuring a secure and efficient charge every time. ULTIMATE PROTECTION - Features overcharge protection to prevent battery damage, ensuring the longevity and reliability of your valuable Nikon EN-EL20 batteries. COMPACT & PORTABLE - The Green Extreme charger's sleek, compact design makes it ideal for travel, easily fitting into any camera bag without adding extra bulk.