The Radinn Universal Charger fits any EU or US electrical outlet and offers three charge modes: Low, High, and Opt.
Low is the default charging profile (1000 Watts at 120/230 Volt).
High will charge your battery in ~2 hours and it is to be used only when the battery needs to be charged quickly (2000 Watts at 120 Volt; 2500 Watts at 230 Volt).
Opt is suitable for low output power sources such as inverters or when charging from a car, van, or boat (450 Watts at 120/230 Volt). If an inverter is used to power the charger, make sure it supplies a true sine waveform.