FOXSUR Smart 6V/12V 1.5A Battery Charger 4AH-30AH Lead Acid Battery Maintainer F
In such cases, press and hold the MODE button for five seconds to manually switch between 6V and 12V. It is compatible with all 6V/12V Lead-Acid, SLA, VRLA, GEL, AGM, and Wet batteries. This feature is designed to prevent battery overcharging.