The Duo LCD Charger for L & M Series Batteries from Watson conveniently charges two batteries simultaneously, drawing power from either an AC wall source (an AC cord with two-prong plug is included) or a 12/24V DC power source (a DC car charger is also included). Additionally, the Duo Charger features a USB power output that supports up to a 2A draw to charge and power smartphones, digital cameras, and other devices with a USB power input.
The interchangeable battery plate system allows you to charge other camcorder-type batteries by swapping out the included plates for different camera plates (not included). The intelligent charger features an LCD screen that graphically shows charge status for both batteries. The charger also features a test button that allows you to test batteries when the unit is not plugged into power, to see their remaining power as a percentage of their capacity. The test button will also switch the display between battery capacity and charging voltage.