Basic performance characteristics of the charger: 1, the output characteristics: input and output constant voltage mode, high precision, low noise, every product has overvoltage protection chip. 2, the parameters of each product: 5V0.5A - 5V2.5A、9V0.5A - 9V8A、12V1.5A - 12V8A、42 V2A- 42V6.5A。