McLaren battery life - it stinks!

How is the battery life on the new 5G smartphone released by joint venture through T-Mobile working with OnePlus on the 4th their phone?
1. October 2018 - OnePlus worked with T-Mobile on the OnePlus 6T
2. March 2019 - OnePlus 7 Pro
3. September 2019 - OnePlus 7T
4. December 2019 - OnePlus 7T Pro 5G McLaren

And yes, I tried all four smartphones released via T-Mobile and thus far, after 10 days of testing, the OP7TP McLaren has the worst battery life with or without the 90 HZ screen display enabled.