4 new batteries and an inverter problems?

The only thing I run on my inverter is my laptop. It's an Acer Nitro 17, a gaming laptop. It draws a bit more power than regular laptops, but not enough to cause what is happening. I spent two hours using it right after I shut down my truck to do my 10 without a single issue before turning of it and the inverter. Woke up to use the bathroom, 3 1/2 hours later, and just to check, turned it on again. Seconds after i turn on my laptop, it starts to beep.

Again, this is opposite of what happened when I first got the inverter in June. The voltmeter is about 12.5-12.7 when I turned it on and quickly rose to 14.1. I don't have an understanding of how the inverter works, but when I plugged my laptop into one of the power outlet inverters (300 w the highest I could find with an outlet on plug), the power draw fried both the inverter and the outlet fuse. On the last page, there is a pic of the laptops adapter. If you know of a stronger inverter I can plug into the outlets without frying everything, I would love a link.

 

This inverter was one I bought from and had installed by my company. They don't allow you to have ant other inverter installed than the ones they sell. It initially came with a small monitor you could plug in to see the power usage and such, but the company doesn't give it to the drivers. All I know is that it's a 2000 W Tundra model. I don't know if this is even a decent brand of inverters. And this issue happens when my truck is off

 

When I stopped at a receiver on the morning of the 28th and shut off the engine to check in, I couldn't turn it back on for 30 minutes. The dashboard monitor flashed an alarm for a right stalk switch error. Had no idea what that meant at the time. Before that, whenever I turned on my engine after it was shut off for the night, the items plugged into my outlets, including my modem, would turn off and then back on. The only happens when there is a problem with the batteries. So far, neither of these have happened since the new batteries were put in. The only problems are with the inverter beeping after the truck is shut off for a few hours.

I drive a '23 model of the freightliner cascadia. To prevent excessive idle, the company rigged it so that the engine will shut down if the outside temperature is between 13°-72°. With winter around the corner, and Wyoming already getting) snow, My worst fear is being stranded for several days and all of my equipment stops working because of power problems. It happened the winter prior, before I got an inverter and it was quite unsettling.

 

I just stopped at a TA in IN and they did a check. there is only a total of 12.8 V running through all four batteries. They will most likely start testing each one to see if any of them are faulty.

I also purchased a Maxpart 1000W smart inverter with a plug-in adapter. I put it in my outlet and tried to run my computer on it. As soon as I ran the game, the inverter started to beep and reset itself. the power on the meter kept jumping from numbers between 10.7-11.8V, right now, not playing any games, the meter is at 12.2 V.

According to the specs, my laptop has a capacity of 90 wh and a charge power of 230. It is an Acer Nitro 17. It's designed for gaming, so I am not sure if this is natural or not.

 

Quite frankly, I am wondering if the power problems may be caused by my laptop in general. as I said, the capacity is 90wh and the charge power is 230W. I just used a small 1000W smart inverter from Maxpart, and while it ran fine for casual use, the second I started to run a game, the inverter started to beep and kept resetting itself to prevent overload. Is a 2000W inverter not enough power for a single laptop? Here is the link to the specific brand I purchased with all of its specs. If anyone can make sense of them and compare them to the power output of a 2000W Tundra brand inverter, then maybe we can know more.