How Big of a Power Station is OK

newbie here!

I have a 2020 Prius LE. I am full time in it in a big hot city where I work full time.

I have a need to run a DC refrigerator and small usb fan 24/7. I also run a 900 watt air fryer and 16oz electric travel water kettle for 15-30 minutes a day. It doesn’t use much power during the cooler months but in summer when it’s 100°-130° all day in the car it uses more power.

For many reasons I was not comfortable setting up a piece-meal battery and inverter so I have a power station instead.

The power station is an Anker 2000C gen 2 which is a 2000watt unit. The specs say it charges at a continuous 12 amps. I had a car audio place run a dedicated wire for it which they ended up having to run direct off the 12v battery instead of through the fuse box. It goes through the fire wall to the back of the car where the power station lives.

I leave the car in READY mode at night to run the air conditioner and charge the power unit 8:00pm to 4:00am while I sleep.

The wires are getting pretty warm during charging. An engineer friend told me that 12 amps is a lot.

Is this too much for the Prius system! Will this damage anything? Shorten the 12v battery life too much? Do I need to get a smaller power station?

my knowledge and understanding of all this is very limited. Please make all answers in simple laymen’s launguage.