I very much doubt you will see any difference in range, mine is behaving pretty much identically to the old battery. I suspect folks that think their range is reduced is merely down to the GOM, not the battery. Just keep an eye on the battery fluid level, I had to top mine up after the first couple of rapid charges.Based in Dublin, Ireland. Finally got the main traction battery replaced after letters from hyundai and calls etc and they are returning it today. I've been hearing some people saying they get less range with their "new" batteries, so will be keeping a very close eye on the battery as I know exactly what range I was getting out of my last battery on my longer trips in this weather. I know it'll take a few charges to get the GOM to pick up correctly, but had been doing my 225km trip and getting there with 47-49% consistently, so we'll see how it goes.