The two-way C port of the product can only be connected to one-way electrical appliances or chargers, such as charging heads, mobile phones, and other electrical appliances. It is forbidden to connect bidirectional C port modules to bidirectional C port modules, which may cause frequent switching between modules that cannot be recognized, and may cause serious damage. This power bank supports the upgrade of a two-way fast charging function.It can support the two-way fast charging function of charging and discharging, such as charging the power bank with the charger of the notebook, and then charging. The power bank can be connected to the computer with a cable, and the power bank and the notebook can be at the same time. At the same time, it can also be sent to the hand through the usb port phone or other device charging. If you don't need to charge and discharge at the same time, you can also output to two fast charging devices at the same time. Note: After the upgrade, the power is very large, and the battery performance must be very good (high discharge rate, consistent internal resistance of capacity), no However, the power cannot be reached, and the battery may heat up badly. It is recommended not to reach the maximum power at the same time. Note: The protective plate is not 2368. Parameter: Continuous working current: 18A Overcharge voltage: 4.235V 0.025V Instantaneous current: 30A Overcharge release voltage: 4.19 0.05V Charging voltage: 16.8-17V Overdischarge voltage: 2.80.08V Charging current: 1-10A Overdischarge release voltage: 3.0 0.1V Balanced start-up voltage: 4.19 0.05V note: Depending on the batch, the appearance/color/batch number of components may be different, which does not affect use. Material: PCB+components colour: purple+green Package Contents: 1 x 100W Fast Charging Module 1 x 3.7V 4S board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.