Heavy Duty Car Battery: This is a battery for cars that need a lot of power. These batteries are typically larger and have a higher cold cranking voltage, allowing them to perform reliably in extreme temperatures. These batteries are used in commercial vehicles such as trucks, SUVs and RVs that need more power to operate their electrical systems. The Heavy Duty Car Battery has been specially designed to resist shock and vibration, which are common in rough roads or at the workplace. The Heavy Duty Car Battery is a great choice if you drive a vehicle that requires a large amount of power, or if you are often in rough conditions.