Ok E89'ers although Ive never had any problems (maybe cause its always tied to a trickle charger) I've decided to change the battery, looks like the original BMW one in it (2009 on the terminal). So shopping around National Tyres are doing Platinum Prestige Plus Sealed Battery (50,000 Engine Starts) 5 year guarantee for £111 including fitting/registering: 12 Volt Battery CCA: 680 AH: 75. So not being an expert on batteries does that sound ok?

