Imagine buying a car with no instruments at all – no fuel gauge, oil pressure indicator, no speedometer or tachometer. Now imagine that none of the controls were functional – no brakes, no gears, no lights – just an on/off switch. This is how I feel when I see customers using an Outback or Magnum or Xantrex XW inverter without the “optional” programming remote (ie. Mate, MERC, or SCP). It’s just crazy. You can only operate on the factory defaults (which probably aren’t right for your batteries) and have no idea about what’s happening inside your inverter. So please – be sure that you and your customers always have access to a programming remote. They’re not really “optional”!