This USB travel charger is designed for Leica BP-SCL4 batteries and features a versatile LCD panel that simultaneously displays charge levels, total charged volume, and charging temperature. It can also be switched to show voltage and charging current. The panel is housed in a fire-retardant PC and ABS shell, built to withstand various outdoor conditions, while maintaining a compact design and weighing just 1.97 oz. The charger outputs approximately 8.4V with a maximum current of 1000mA, and accepts a 5 VDC / 2A input via its USB cord, which can be conveniently stored in a rear compartment for easy portability. Additional features include an initial low-current test to assess battery health, recovery attempts for over-discharged protected batteries, and safeguards against incompatible models or short circuits.