Ring Powerpack RPP225
As you’d expect, it excelled in the engine test, made easy by its long leads – stored separately, as on our winner.
Recommended
Heavyweight Ring is the one to go for if you have a fleet of rarely used cars, as it packs an 800-amp, 34Ah battery.
As you’d expect, it excelled in the engine test, made easy by its long leads – stored separately, as on our winner.
The family resemblance to the Halfords is clear as it also has USB, cigar lighter and mains sockets – with the latter good for 300 Watts.
