How will the charging speed change when the PD Power Bank Board charges multiple devices at the same time?
Publish Time: 2024-08-08
When the PD Power Bank Board charges multiple devices at the same time, the charging speed will change significantly.
First, when multiple devices are connected to the PD Power Bank Board at the same time, the power bank needs to distribute the total current to each device. The PD Power Bank Board generally has its maximum output power limit, for example, the common ones may have 18W, 30W or even higher power output. Assuming that the maximum output power of the power bank is 30W, when charging only one device, it can charge according to the maximum power that the device can support. For example, if the device supports PD 18W fast charging, it may charge at a power close to 18W. However, when multiple devices are charged at the same time, this 30W power needs to be distributed.
If two devices are connected and both support PD fast charging, the power allocated to each device may be reduced. For example, each device may only be allocated about 15W of power, which results in a slower charging speed than when charging individually. And if one of the devices requires a larger current, the power board may prioritize its basic charging needs, thereby further reducing the allocated current for the other device, which will have a greater impact on its charging speed.
In addition, the intelligent charging management system of the PD Power Bank Board will also affect the charging speed. Some advanced power boards can dynamically allocate power according to the priority and power status of the device. For example, more power will be allocated to devices with lower power to increase their power as quickly as possible. But even so, the more devices are charged at the same time, the overall average charging speed will still decrease.
At the same time, the battery status of the device itself is also related. If the battery of the device is close to full, then when charging multiple devices, it may enter the trickle charging mode, which takes up less power and has a relatively small impact on the charging speed of other devices. But if the battery capacity of multiple devices is large and the power is low, the decrease in charging speed will be more obvious. In short, when the PD Power Bank Board charges multiple devices at the same time, the charging speed will slow down to varying degrees due to various factors such as power allocation and device status.
