Basically power wise its just as good as the cheapest one halfords lists for a cossie, but its not the one that the company reccomends for one.

But as said will work, just make sure their warrenty covers it to be used on yours if its not what they list as being a cossie one!! Cant see it being a problem thou and as i said before £40 is bloody cheap, halfords cheapest with round terminals is £70 odd!! obviously would get it alot cheaper instore with my trade card but still!