Wide Compatibility This igniter for starter works effectively with lithium battery models BL1850B and BL1860B, and is suitable for trucks, SUVs, full-size cars, and compact vehicles. Secure Connections Designed with strong clamps featuring serrated teeth for maximum grip, these cables provide effortless and reliable connections in any situation. Electrical Shock Protection Insulated handles are included to protect against electric shock, ensuring a safe starting experience for your vehicle. Practical use scenarios - Roadside emergency: Start a vehicle with a dead or weak lithium battery in cold weather, using a compatible BL1850B or BL1860B pack. - Fleet maintenance: Quickly connect and start multiple vehicles in a workshop or service environment. - Home garage: Safely start a drained battery in a full-size car or compact vehicle without risk of electric shock.