Mercedes E300 Hybrid : let's try Renogy LiPo battery to run the car

My old battery is more than 10 years. And instead of replacing it with the same AGM, I want to try if this car can work with the LiPo Deep Cycle, 100 Ah, battery with self heating function, from Renogy.
The new battery is about 430 GBP, ~460 Euros. Not cheap, but it can give me power for much longer than the 95 Ah AGM battrery, and it should last much longer.
As you can see in the video, it can start the car on it's own with no problems at all.
My only worry is that how it will be charged.
We'll see how it goes, and I'll report on further findings in the comment section later.

[@mercedes-benz2127]

Update: on the 4th day of driving with both batteries a red message comes out on the dashboard, sometimes, showing battery and sying: visit workshop. So for now I disconnected the lithium and trying to learn the reasons and solve the problem. It looks like the Power Electronics control module is switching off the voltage supply to the 12v battery. With a single battery everything is OK. Probably in about 2 weeks from now, when I've learned more about it, I'll make another video on this topic.