1. Portable Mobile Power Module. 2. Supports 3 Usb Cables. 3. Press And Hold The Button After Standby To Power The Led Digital Display. 4. When Charging, The Led Digital Screen Displays The Current Battery Level. 5. When Discharging, The Led Digital Screen Displays The Current Power, Saving About 30 Seconds Of Display Time (Double-Click The Button To Resume The Display). After Charging And Discharging, The System Will Provide Accurate Battery Indication. Charge Voltage: 4.5~5.5V Input Voltage: Input Voltage B+ To B- 3.0~4.2V Detection Voltage: 4.20±0.05A Release Voltage: 4.100±0.05V Detection Delay Time: Less than 200 MS Detection Voltage: 3.0±0.10V Release Voltage: 3.10±0.10V Detection Delay Time: Less than 100 MS Constantcurrent: 2A Short Detection Delay Time: Less than 50uS Releaseconditions: Cut Off Load Normal Current Consumption Of Pcm: Max 60ua Stanby Current Consumption: Max 50ua Allowed 0v Change: Y Max Charge/Discharge Current: 1.5/2A Suggest Working Temperature:-5~45℃ Ir Of Pcm:≤65mΩ Size:about 65 x 25 x 5mm Charge Voltage: 4.5~5.5V Charge Threshold:Vbat (Th)=3.0V type:A: 5V 2.4A three charging ports Colour:green Material:PCB Package Contents: 2 x 18650 Lithium Battery Charging Module Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use