Nitecore UM20 Li-ion 2-Bay Battery Charger

UM20 charger is capable of charging Li-ion batteries and an external device simultaneously It also allows you to prioritize the charging of the batteries or the device by setting the Priority On the front, a crystalline LCD displays charging status and battery power levels at real time The rear design, with a cable winder and a USB port, also allows you to transfer data Constructed from fire retardant materials and top safety. Certified by RoHS, CE, FCC, and CEC