Well, that’s still very important, because cold, cranking amps tells you the ability of the battery to do work right now. And the higher the cold cranking amp rating of the battery, the better it is for your car. But, don’t get that confused with cranking amps – CA. … The cranking amps are rated at 32 degrees Fahrenheit.
Life more than 4-5 years.
A Calcium battery is a still a lead-acid battery; they are usually maintenance free. Calcium replaces antimony in the plates of the battery to give it some advantages including improved resistance to corrosion, no excessive gassing, less water usage, and lower self-discharge.
The main advantage of a maintenance free battery is that the electrolyte inside is completely absorbed in the separator and does not require water to be added regular basis. It does not need regular maintenance or ventilation, and can resist different climates in a better way than flooded ones
AGM technology became popular in the early 1980s as a sealed lead acid battery for military aircraft, vehicles and UPS to reduce weight and improve reliability. The sulfuric acid is absorbed by a very fine fiberglass mat, making the battery spill-proof. This enables shipment without hazardous material restrictions.