From the manufacturer:
VERSATILE 12V & 24V SMART CHARGER FOR LEAD-ACID BATTERIES - This all-in-one auto battery charger is a powerful smart solution for both 12V and 24V lead-acid batteries, including AGM, GEL, MF, and EFB types. Its intelligent microprocessor ensures faster, easier, and safer charging for your car, truck, SUV, or motorcycle.
Featuring an advanced 8-step, fully automatic charging cycle, this smart automotive battery charger efficiently charges and then automatically switches to a float/pulse maintenance mode after the battery is full. This keeps your battery optimally charged and ready, even during long storage periods.
Get your vehicle running fast with the 12V BOOST mode. This car battery charger function provides a 20A current for 300 seconds to quickly charge a depleted 12V battery.