Nitecore UM20 USB powered battery charging system, 2 X Nitecore NL189 3400mAh 18650 li-ion batteries with EdisonBright Battery Box and EdisonBright AA to D Battery converter/spacer iPhone Features: •Two independent charging channels

Features: •Two independent charging channels

/54 meters

Automatically protects against overcharge

Beam intensity: 107

Nitecore UM20 USB powered battery charging system, 2 X Nitecore NL189 3400mAh 18650 li-ion batteries with EdisonBright Battery Box and EdisonBright AA to D Battery converter/spacer iPhone Features: •Two independent charging channelsThis all new highly advanced smart charger automatically selects charging current based on battery capacity, enabling one charger for multiple capacities. USB powered UM 20 is as simple as insert, detect, and charge. Features USB powered Li ion battery charger High definition LCD displays real time charging status Features USB output charging Integrated intelligent power management system Intelligently detects input power Intelligently distributes