The SAE J1772 AC Level 2 standard is rated for up to 80 amps, which at 240V AC produces 19.2 kW. The AC charger on board the Ford Focus Electric is only rated at 6.6 kW or about 27.5 amps at 240V. It appears that there is much room for improvement on the on board Ford Focus Electric AC charger.
I don't know of any public L2 charging stations that are rated for 80 amps or anywhere close to it but 80 amp L2 can be purchased, https://store.clippercreek.com/level2/level2-40-to-80/cs-100-70-amp-80-amp-ev-charging-station. An 80 L2 charger would cut the charging time down on the 33.5 kW Ford Focus Electric battery from more than 4 hours with a 6.6 kW charger to less than two hours with a 15+ kW charger. DCFC chargers are still going to be much faster but many locations will still need to depend on L2 charging and if Ford starts installing higher kW L2 on board chargers maybe many of the public chargers will get faster.
I don't know of any public L2 charging stations that are rated for 80 amps or anywhere close to it but 80 amp L2 can be purchased, https://store.clippercreek.com/level2/level2-40-to-80/cs-100-70-amp-80-amp-ev-charging-station. An 80 L2 charger would cut the charging time down on the 33.5 kW Ford Focus Electric battery from more than 4 hours with a 6.6 kW charger to less than two hours with a 15+ kW charger. DCFC chargers are still going to be much faster but many locations will still need to depend on L2 charging and if Ford starts installing higher kW L2 on board chargers maybe many of the public chargers will get faster.