Draper PP12VB/HD Power Pack

This HD model comes with the longest leads here, at 124cm, and hefty, insulated clips. It easily turned our engine, with the pack on the floor. Well built, with an isolator and low-voltage cut-

out, but short on features – while you get three warning LEDs, an analogue battery gauge and a 12V socket, there’s no light. Technically good, yet overpriced.