I just bought 2 deep cycle batteries from Powertron. The price was right, the service and help were very good as well. I recently suffered a broken ankle and am stuck in an electric wheelchair for awhile. I needed the batteries fully charged up when I bought them as I needed the wheelchair immediately.
The Powertron folks not only had these rather difficult to find batteries in stock but they had them fully charged and ready to go when I arrived.
They even took them out, loaded them in the car, and helped me recycle the old worn out batteries.