Battery replacement advice

[JuicyV8]

Battery is misbehaving, and I think I need a replacement today as off to Wales for a few days. Means using halfords as nowhere else is open. Anybody got one from there recently who can recommend which should I go for....?

[JuicyV8]

Oops in my haste forgot to say what car, sorry my bad! 05 CV8...went for a silver type 075 in the end as it already had that type. They were fairly helpful. Probably paid 30 more than if it wasn't Sunday and I needed it then. 5 yr guarantee thou. Starting is a bit more positive now as well so all good.
Not the greatest start to a hungover morning...
Anyway, thanks for the replies!