Suzuki Club UK

Sure others have noticed what a load of crap the so called emergency jump start devices are...
apart fron the internal battery not of a high capacity they go down hill bloody fast.....
been through 4 of these the last one damn expensive.....kept it topped up with a charge but when needed it only turned the anus over a couple of times hydrometer showed a flat battery......
easier to push start the anus......after leaving light on all night
Jim

Yup, they are rubbish.

Maplin jump starts use a PP3 battery.......

Easy solution.... don't leave your lights on

I had a PowerRing unit, which is now sold as a Halfords (PP135) unit, lasted me at least six years, the battery was still good but the internal charger failed. The battery was 20Ah which started most things and did sterling service during power cuts using the internal inverter. It was one of the best things I've ever bought, I was really poor at keeping it charged up too. I have a larger version now so I can jump start the van (2.5TD).