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Sealey PI300

Best Buy

It was tight at the top, but the Sealey takes the win as it is the easiest to live with. It has both lighter socket and battery clamp leads, with Best Bu the former a useful metre long. The only drawback is that swapping them requires a screwdriver. The cooling fan only cuts in when needed and is quiet when it does. It coped with all of our electrical kit delivering a smooth, strong output.

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Products editor

Kim has worked for Auto Express for more than three decades and all but a year of that time in the Products section. His current role as products editor involves managing the section’s content and team of testers plus doing some of the tests himself. 

New & used car deals

Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £5,118 off RRP*Used from £11,990
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £6,301 off RRP*Used from £9,607
Renault Clio

Renault Clio

RRP £16,160Avg. savings £4,805 off RRP*Used from £6,595
Volkswagen Polo

Volkswagen Polo

RRP £15,255Avg. savings £2,412 off RRP*Used from £7,795
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
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