General Lee 100W Radio

So there is a very reputable CB guy around here that runs a little shop. It's not one of those just off the interstate kinda deals where they will screw guys passing through. This guy only serves the local truckers in the area.

So a buddy of mine talked me into buying the General Lee radio with the amp on the bottom that is supposed to be pushing 100W and whatnot. This guy also tunes and peaks all radios before he puts them on his shelf for sale. My truck is a 2000 KW W900L and I'm sure needed a new coax. We ran a new coax that evening and then ran 10 gauge wire to the battery box. I just had a few questions for all of you CB savvy guys.

- Mr. CB Man told me that with this radio, I had to run it directly to the batteries. Does it matter which battery in sequence? I always park the truck with the radio, CB, etc. turned off (I won't leave a phone charger plugged in or anything). Will this cause one battery to go bad before the rest? Is there any better way to wire it up with a big radio pushing this much power?

- I mostly do work for the coal mines hauling their big longwall equipment. There hasn't been much work so I've just been running my triaxle hauling dirt. I really haven't gotten to try the radio out yet. What sort of range should I expect from this? I know that your antenna plays a great deal into the whole unit and I can't remember the exact antenna I put on that truck a few months ago but it's a whip style antenna. Probably 4-5' in length and is on top of the mirror bracket.

- I didn't realize how many options there were to coax cables until I was looking through other articles here. I would assume the coax I bought should be good enough. He is a pretty knowledgeable guy.

Is there anything I could change or anything you would do differently to get better results? I'm really not great with this CB stuff but I would like to be. There is so much knowledge on the internet that it is overwhelming and hard to sort through. Any input is appreciated!