u/medievaljet

The main battery charge level is easy enough to monitor, but I don't know of any way to monitor the 12V battery level, so I'm trying to understand how it works in relation to the ports and the car main battery, so I don't ever get stuck with a dead battery.

I've often used the 12V port to recharge or power miscellaneous devices (the USBC ports are too weak for basically anything but a phone) while camping--mainly recharging portable batteries and my laptop. I've never had any issues (other than the annoyance of having to periodically turn the car back on after it shuts off after a certain amount of time, so that the port keeps supplying power), but I've wondered how long I can go before I risk running the 12V battery dead, or if there's that risk at all since the car has to be "on" for the 12V port to work. Does the car being "on" mean that whenever I'm using the port it's always recharging from the main battery, so the only way to run it dead is to deplete it faster than it recharges? If so, then what is that speed (wattage?)? I wonder this because it might be useful to run a heavier duty device like a kitchen appliance from my car via an AC converter at some point if that's an option.

Appreciate any info!

I'm heavily considering replacing the factory 20" wheels on my 2021 AWD ID4 because:

1. I want to get some all terrain tires for camping trips, but there don't appear to be any for that size when I do a search in America's Tire, I assume because A/T tires require larger sidewalls than can fit on the large wheels. FYI, this is just to get from point A to B on non-ideal terrain, I would not be trying to drive fast.

2. I dislike that the factory wheels are staggered because I can't rotate the tires for longer life (can this be changed?)

3. I'd also like smaller wheel diameter for lighter weight (I assume wheel material is heavier than tire material)

I've never bought wheels before (for any car much less an EV), so just trying to gather info. Other than requiring the same bolt pattern as my ID4, what other factors do I need to consider for after-market wheels? How close does the offset need to match? Do EVs require special wheels like they do with tires other than just sufficient load rating? Does the rating change if used off-road (at slow speeds)? Is it possible to get symmetrical wheels on the ID4? Does the wheel and tire width need to stay the same as stock?

Also any advice for A/T tires? This is all new so I'd appreciate any advice. Thanks!