Calcium-Calcium: These batteries are not a lead-acid technology. They feature calcium plates as opposed to typical lead plates found in lead-acid batteries. Calcium-calcium batteries are fairly uncommon and require a higher charging voltage. Make sure to charge calcium-calcium batteries in the 12V Calcium Mode.
Monday through Friday
The NOCO Company 30339 Diamond Parkway #102 Glenwillow, OH 44139-5400 United States of America