Willard 658 battery is a popular 12V automotive battery in South Africa, typically around 100-102Ah (Amp-hours) with strong Cold Cranking Amps (CCA) (e.g., 670A), suitable for various vehicles, known for durability, often available as maintenance-free (MF) or AGM, and usually comes with a 25-month warranty and requires an old battery trade-in. It's a reliable choice for starting engines, powering accessories, and handling demands of modern cars, especially with features like AGM technology for better performance.