It may not be an official battery, it is recommended to use an official battery
The iPhone XS Max was launched by Apple at 01:00 on September 13, 2018 (10:00 on September 12, California time) at the Steve Jobs Theater on the Apple campus in SAN Jose.
The iPhone XS Max comes in three colors: silver, dark space gray and gold; Adopt iOS12 operating system, support face ID, 3D Touch function; Screen size: 6.5 inches; Support 2688x1242 pixel resolution. Supports 4K video shooting. Front camera 7 million pixels; Rear camera 12 megapixels. The iPhone XS Max comes in three capacities: 64GB, 256GB, 512GB .
If there is no health efficiency of electricity after replacing the battery, it means that the battery you replace is not the original battery, so the system can not detect, there will be no display of electricity, and there will be a pop-up window for maintenance. If you want to solve this problem is actually very simple, it is to remove the line on the battery of the original machine, and then install it on the new battery can be solved.
This could be a problem with the system.
When the general power is in this situation, it has been turned off.
This may also happen when charging.
It is recommended to restart the mobile phone to see if the plane can be normal?
If not, then restore the factory, or directly to the after-sales solution.