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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

Nissan Qashqai

Nissan Qashqai

RRP £27,415Avg. savings £6,924 off RRP*Used from £12,800
Toyota Yaris Cross

Toyota Yaris Cross

RRP £26,495Avg. savings £2,607 off RRP*Used from £15,997
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,614 off RRP*Used from £10,350
Audi A3

Audi A3

RRP £26,295Avg. savings £3,576 off RRP*Used from £11,895
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
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