Is there a way to batch rename artboards in Illustrator CC?

@Rafael5D3E try this. I fixed some bugs in the variables

// Artboard-Name-Editor.jsx
// 
// Versions:
// 0.1 Initial version by Qwertyfly (27/5/2015)
// 0.2 added scrollbar (needed full rework) by Qwertyfly (7/6/2015)
// 0.2.1 by Qwertyfly (10/6/2015)
//  - bug fix, forgot to initiate the "pre" "nam" & "suf" arrays.
//  - added user var for Seperators
// 0.2.2 (05/11/2020) by Sergey Osokin
//  - fixed arrays names and indexes
//  - fixed scrollbar
//  - added isEmpty() function to prevent entering text string has only whitespace


//  User set variable
var SCRIPT_NAME = "Artboard Name Editor",
    ROWS = 10, // Number of visible rows.
    PREFIX_SEPARATOR = " - ", // Seperator between Prefix and name
    SUFFIX_SEPARATOR = " - ", // Seperator between name and Suffix
    AB_LIST_HEIGHT = 220; // Artboards names list height;

var doc = app.activeDocument,
    abs = [],
    item = [],
    pre = [],
    nam = [],
    suf = [];

for (var i = 0; i < doc.artboards.length; i++) {
  abs.push([false, doc.artboards[i].name, false, i]);
}

var w = new Window('dialog', SCRIPT_NAME);
var list = w.add('group');
list.orientation = "Column";
var head = list.add('group');
head.alignment = "left";
var p = head.add('statictext', undefined, "Prefix");
var n = head.add('statictext', [0, 0, 195, 20], "         Artboard Name");
var s = head.add('statictext', undefined, "Suffix");

var scrollwin = list.add('group');
scrollwin.alignChildren = "fill";
var items = scrollwin.add("panel");


if (abs.length < ROWS) {
  for (var i = 0; i < abs.length; i++) {
    item = items.add('group');
    newLine(i, item);
  }
} else {
  items.maximumSize.height = AB_LIST_HEIGHT;
  var grItems = items.add('group');
  grItems.orientation = "column";
  grItems.alignment = "left";
  grItems.margins = [0, 5, 0, 0];
  grItems.maximumSize.height = abs.length * 100;
  
  var sbar = scrollwin.add("scrollbar");
  sbar.stepdelta = parseInt(ROWS / 2);
  sbar.preferredSize.width = 20;
  sbar.maximumSize.height = items.maximumSize.height;
  
  for (var i = 0; i < abs.length; i++) {
    item = grItems.add('group');
    item.alignment = "left";
    newLine(i, item);
  }

  // Trick from https://community.adobe.com/t5/indesign/scrollable-panel-group-in-scriptui/td-p/10967644?page=1
  sbar.onChanging = function() {
    grItems.location.y = -1 * this.value;
  }

  w.onShow = function() {
    sbar.maxvalue = grItems.size.height - items.size.height + 20;
  };
}

function newLine(num, item) {
  pre[num] = item.add('checkbox', undefined, "");
  pre[num].value = abs[num][0];
  pre[num].label = abs[num][3];
  pre[num].onClick = function() {
    abs[this.label][0] = !abs[this.label][0];
  }
  nam[num] = item.add('edittext', [0, 0, 200, 20]);
  nam[num].characters = 50;
  nam[num].text = abs[num][1];
  nam[num].label = abs[num][3];
  nam[num].onChange = function() {
    if (isEmpty(this.text)) {
      this.text = abs[num][1];
    } else {
      abs[this.label][1] = this.text;
    }
  }
  suf[num] = item.add('checkbox', undefined, "");
  suf[num].value = abs[num][2];
  suf[num].label = abs[num][3];
  suf[num].onClick = function() {
    abs[this.label][2] = !abs[this.label][2];
  }
}

var sep1 = list.add("panel");
sep1.alignment = ["fill", "fill"];
sep1.minimumSize.height = sep1.maximumSize.height = 2;

var prefixt = list.add('statictext', undefined, "Prefix to add to checked artboards");
var prefix = list.add('edittext', [0, 0, 280, 20], "");

var sep2 = list.add("panel");
sep2.alignment = ["fill", "fill"];
sep2.minimumSize.height = sep2.maximumSize.height = 2;

var prefixt = list.add('statictext', undefined, "Suffix to add to checked artboards");
var suffix = list.add('edittext', [0, 0, 280, 20], "");

var sep3 = list.add("panel");
sep3.alignment = ["fill", "fill"];
sep3.minimumSize.height = sep3.maximumSize.height = 2;

var ButtonGroup = w.add("group");
ButtonGroup.margins = [0, -10, 0, -8];
ButtonGroup.alignment = "right";
var go = ButtonGroup.add("button", undefined, "OK");
var stop = ButtonGroup.add("button", undefined, "Cancel");

stop.onClick = function() {
  w.close();
}

go.onClick = function() {
  var validatePre = false,
      validateSuf = false,
      validateMessage = "";   

  for (var i = 0; i < abs.length; i++) {
    if (abs[i][0] == true && isEmpty(prefix.text)) {
      validatePre = true;
    }
    if (abs[i][2] == true && isEmpty(suffix.text)) {
      validateSuf = true;
    }
  }
  if (validatePre == true) {
    validateMessage = "Artboards have been marked for Prefix, but no Prefix entered\n"
  }
  if (validateSuf == true) {
    validateMessage = validateMessage + "Artboards have been marked for Suffix, but no Suffix entered"
  }
  if (validateMessage != "") {
    alert(validateMessage);
  } else {
    w.close();
    goTime();
  }
}

w.show();

function goTime() {
  for (var i = 0; i < abs.length; i++) {
    var name = abs[i][1];
    var pr = "";
    var su = "";
    if (abs[i][0] == true) {
      pr = prefix.text + "" + PREFIX_SEPARATOR
    }
    if (abs[i][2] == true) {
      su = SUFFIX_SEPARATOR + "" + suffix.text
    }
    doc.artboards[i].name = pr + name + su;
  }
}

function isEmpty(str) {
  return str.replace(/\s/g, '').length == 0;
}