Clarke JSM1200 Multi-Purpose 1200A Lithium Polymer Jumpstarter with USB Outputs & LED Light, Awarded 2024 Best Overall by WhatCar

Can be used approx. 20 times on a single charge (depends on age and condition of battery) Vehicle jumpstart output: Starting current 600A, Peak current 1200A 12Ah Lithium Polymer batteries with very low charge cycle requiring only approx 7 hour monthly recharge if not used. Starts petrol engines up to 5.5 litres and diesel engines up to 3 litres 2x USB 5V Outputs (1x3.0A, 1x 2.1A) 12V vehicle jumpstart output with LED connection status smart lead 5V USB output with 3-way device adaptor cable; including iPhone Lightning, USB C and Micro USB outputs to suit most mobile phone connectors Includes USB-C to USB-A cable with car adaptor Powerful LED light with Illumination, Strobe and SOS modes