... working efficiency: over 85%, good charging performance.5.sronger performance, lower cost. Parameters: Input: DC12V-24VOutput: DC4.2V-9V, 100 ... environment: -10°C-40°C Relative humidity: ≤ 85%, gas pressure :86-106KpaLED display: single light with 1 color,single light ... box weight:9.8g)Safe with constant current charging, pressure limiting,lower risks of over-current,overheat and short-circuitScope of ...