MSC Overland + 18Ah Waterproof 5V/12V/19V Power bank & jump start jump starter
£89.10
Taken directly from MSC website (googleMSC Overland + Waterproof 18Ah 5V/12V/19V Power Bank and Jump starter for full info). Jump Start Mode: Start current 350A, Peak current 700A. Output USB: DC 5V/2.1A.