Amazon has the Schumacher DSR ProSeries INC100 100A 12V Battery Charger/Flash Reprogrammer & Power Supply w/ Battery Support for $449 with free shipping.

Compatible with standard automotive, lead-acid, calcium, AGM, start-stop, and gel batteries.  Voltage can be customized between 13.0V and 14.8V. Also includes a digital display, dual temperature-controlled cooling fans, multiple outlet cables, heavy-duty replaceable clamps, adjustable mounting brackets, a durable aluminum case, and an insulated handle.