The Patona Enel20, EN-EL20, EN-EL20A, Enel20a USB Dual charger is ideal for trips or professional users due to its extremely compact design. The Enel20, EN-EL20, EN-EL20A, Enel20a Dual charger is a practical and reliable companion for every digital photo shoot. It is possible to load 2 batteries at the same time. The charger can be supplied with the supplied micro USB cable via any standard USB port. An integrated automatic switch -off system prevents damage to the batteries by overloading. Technical data: input: DC 5V / 2.1A output: DC 8.4V / 700mA x1 / 500mA X2 (CH1 / CH2) Dimensions: 11.5 x 7 x 1.9 cm connections: Micro USB (input), 2 charging compartments ( Output) Suitable for the following camera types: Nikon 1 J-1, 1 J1, 1 V3, 1 V-3 Suitable for the following battery models: Nikon Enel20, EN-EL20, EN-EL20A, Enel20A