1100W is a charge rate of 1.1kWh per hour.
So a typical car with 70kWh battery, will take about 70-80 hours to charge from 0 to 100%.
If you're camping, that can be plenty. You won't run down to zero getting to the camp site. And you don't need to be at 100% to leave. It'll give you ~10kWh a day. You'll be able to charge for several days. When you're ready to leave you'll have plenty to get to a real charger.