NOCO Boost GBX75 2500A UltraSafe Lithium Jump Starter

The GBX75 is the size of a hardback book and will turn over a 6.5-litre diesel from flat, which is the whole argument for carrying one instead of a set of jumper cables and the hope that a stranger stops. It is 2500 amps against the older GB70's 2000, and it recharges over USB-C in about two and a half hours rather than overnight. The reason to buy it is that it removes a category of bad evening from his life entirely. The reason to hesitate is that it only earns its keep if he actually leaves it in the car; bought and left in a drawer it is an expensive torch. Get the smaller GB40 instead if he drives a four-cylinder and just wants insurance.

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