This small, lightweight & portable lithium-ion power bank with in-built torch is suitable for use on larger vehicles with a diesel engine capacity of up to 4ltr, & a petrol engine capacity of 6 Litres. It will jump start a flat battery making it perfect for emergency situations. In addition, it provides USB (Universal Serial Bus) 5V device charging for mobile phones, cameras etc. An ideal device to keep in your vehicle, just in case.