The ETX18F has 230CCA, 340PCA; weighs 2.2 pounds; has 6.2Ah capacity and has the full battery management system with a 2 year warranty. The dimensions are 150mm x 86mm x 93mm or 5.9″ x 3.4″ x 3.6″. ( L x W X H) The cost is $229. The ETZ14C has 330CCA, 690PCA; weighs 2.5 pounds; has 6.8Ah capacity and has the battery management system minus over discharge protection and excessive cranking protection so it will not cut off in cold weather starts with a 1 year warranty. This battery was designed for high cranking amps in the cold. The dimensions are 150mm x 86mm x 115mm or 5.9″ x 3.4″ x 4.5″. ( L x W X H)The cost is $259. https://earthxbatteries.com/product/etx18f/ https://earthxbatteries.com/product/etz14c/