Can charge 2pcs battery in exactly the same period, remarkably efficient!Detachable NP F970 battery plates suited forSony NP F550/F750/F950/ NP FM50/FM500H/QM71 etc video camera batteries. (Battery comes separately.) Wide voltage compatibility, is able to charge 8.4/12.6/16.8V li ion battery pack of any capacity.You can easily pick high/low present energizing modes.With CC/CV re-powering modes and also AC/DC/USB ports.LCD screen show battery power level as well as charging status.Intelligent charging suppression, immediately distinguish battery voltage preventing overcharge.With pre charge and also lithium battery 0V activation feature, may efficiently lengthen battery life.