PATONA Synchron USB Charger for Nikon EN-EL20 1 J1 J-1 V3 V-3. The charger features an LCD display to indicate the battery's charging status. It operates with or without an external power source. With this exclusive PATONA synchronization charger, you can charge a battery and a third device, such as a smartphone, tablet, or power bank, simultaneously. Once the battery is fully charged, the charger automatically switches to maintenance charging. It has three power supply connections: Micro-USB (standard connection for mobile phones/smartphones), mains flat plug (230V), and car adapter (cigarette lighter - 12V). The charger is compatible with the camera models: Nikon 1 J1, J-1, V3, V-3. Compatible original battery designations: Nikon EN-EL20, EN-EL20, EN-EL20a, EN-EL20a. Additional information: This charger is a high-quality product from the brand PATONA, designed and developed by German engineers.