AquaFill Water-adding System

AquaFill sealing plug has been a matured and practical system, whose use is pretty simple. When adding water to the battery, all of the water-in gaps are connected by the buoys’ unit plugs, in the meantime, the water of the already full body will uphold the buoy & seal the water-in gap. The water-adding process will finish after all the buoys’ unit plugs are upheld.