The TOPDON V4500Plus Jump-Starter and Battery/System Tester gives you a high-output jump-starter built for large 12V gas and diesel enginestrucks, vans, RVs, and most farm and construction equipment. This TOPDON jump-starter pairs with the TOPDON app for full battery testing, giving you clear insight before replacing anything. With up to 45 jump-starts per charge, fast charging, bright lighting, rugged protection, and durable construction, it's ready for tough, real-world use. Mfrs. 1-year limited warranty. Easily jump-starts 12V gas and diesel engines such as trucks, vans, RVs, and most farm and construction equipment Pairs with TOPDON app for full battery testing Fast charging for USB devices Bright built-in flashlight Rugged built quality Clear, easy-to-read HD display