Noooo. don't charge to 100% unless you can get it back down under 90 before you park up.
Car does not understand range as 345 miles - that marketing bs just like 70mpg - its a way to compare vehicles, no more, no less.
Car will initially delivered at around 310 miles (some newer versions may be slightly more different), but this changes slightly over time, or even by software version. But even so, its not your range - it will be if you average 225W/mile, but you are unlikely to do that this time of year, or on short runs, or, ..... lots of reasons. Just not like getting the rated.
So moral of story is, if you get 225Wh/mile, you will get close to 325 miles, if you do better (less), you will get closer to 34x, but more than likely, you will be much less.
As car won't change max 310 miles it displays except if car detects conditions not optimal to battery - wear, temp, just because it feels like it, etc, so don't bother with it. Stops you panicing even more when it drops below 300 miles. Set the display to % - just like a fuel gauge. Then keep charge ideally between 20 and 90%. Its not a patrol/gas car so don't expect it to behave the same. Don't fill it up to max, or leave till empty. Top it up less but often - hopefully you have charge point at home do you can do that whilst you sleep. Something you could never do with a petrol/diesel.