Features: Can charge 2pcs battery at the same time, highly efficient! Detachable NP-FW50 battery plates suitable for Sony a7 a7R a7sII a7II a6500 A6300 a7RII NEX series etc camera batteries. (Battery is sold separately.) Wide voltage compatibility, can charge 8.4/12.6/16.8V li-ion battery of any capacity. You can select high/low current charging modes. With CC/CV charging modes and AC/DC/USB ports. LCD display show battery power level and charging status. Intelligent charging control, automatically identify battery voltage and prevent overcharge. With pre-charge and lithium battery 0V activation function, can effectively prolong battery life.