Battery charger?

[4ordracer]

I bought the big optima charger for my bracket car. 2 optima red tops. When I got the charger, there was a broken piece. Called customer service and no problem, we'll send a replacement. Returned the broken one in the same box which included a return label (no cost to me, except the trip to ups). Three years later (iirc warranty was 2 years), the screen that showed you charging rate dies. Still charges but no idea of the rate of charge. Call customer service looking to buy a replacement screen. Was told they Don't sell parts, but they asked about the serial number. Calls me back and they said they would ship me a new one, no charge. I was surprised as it was past warranty.
That's my idea of customer support!