Charge-It Concentrated Battery Additive (2 oz.) - Charge-It is the only patented non-acid battery additive available. Guaranteed to restore, improve and prolong the life and performance of batteries. Usage Guide: One 2 oz bottle treats one standard automotive battery or 2 oz for every half gallon of electrolyte. IMPORTANT SHIPPING INFORMATION: UPS 2nd Day Air Service is NOT available. This item must be shipped via UPS Ground Service ONLY. Ground Service can only be delivered within the 48 continental United States.