The only Batery type I trust is the AGM type that link said 145 pound you get what you pay for. Australian climate can be hard on battery 's & road surface can be very rough , distance we drive can be long & remote. So a battery is important in some area's so we might look at it in a different way. But I had enough of cheap batteries I had one earth or ground & was only 6 months old I was on a rural road no place to pull off and speed limit was 100kph was just around a bend in road pitch black no lighting, the cars went dead so no power assistance to help stop it no lights. I was just lucky.
So I don't mind paying more for one that won't let me down 20 years useing the AGM type I won't change!!!!!
But in GB some have mentioned very long life, I normaly get 7 years out of an AGM