These batteries are designed to deliver high cranking amps (CA) and cold-cranking amps (CCA). Cranking amps represent the battery’s ability to deliver power to start the engine, while cold-cranking amps indicate its performance in cold weather conditions.
Group 31 batteries are typically maintenance-free, which means they do not require regular topping off with distilled water. They are often sealed and have calcium or calcium-calcium alloy grids to reduce water loss.
Heavy-duty starting batteries are built to withstand the rigors of commercial and industrial applications. They are constructed with robust materials to resist vibration and corrosion.