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 Automatically protects against overcharge

Automatically protects against overcharge

Able to charge over twice as many types of batteries as its previous model

5 meters middot

Features: •Two independent charging channels

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 Automatically protects against overchargeThis 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