There are two ways to set the lithium battery.
The first one is by MT50.
1.Here is the link of MT50:https://www.acopower.com/collections/accessories/products/hy-as-mt-50
2.Here is the video about how to set by it：
The second one is by PC software.
1.You need purchase the USB to RS-485 PC Communication Cable
2.Please download the PC software and the driver here:https://support.acopower.com/