The ISF battery on board charger can charge your battery in no time! It can deliver charge power from 3 to 9kW. It is developed and produced by InnoSys Delft BV. There are 2 versions available that can be fed with 3 different voltages:
1) 1-phase 190-280Vac 3kW and 3-phase 330-485Vac 9kW
2) 3-phase 330-485Vac 7kW and 460-700VDC 9kW
The first version is for use at the conventional 50/60Hz AC-network. The second version is well suited to be still used on the conventional AC network, but also to be used as a transition from conventional AC to future DC powering of charging equipment.
A datasheet is attached.