coupe323

hi, i cant find a model number on the battery but its a halfords battery so iv been into halfords its looks like a hb093, halfords tell me this is the correct one for my car?

hello everybody iv just signed up i bought my first bmw yesterday its a y reg 323ci but the battery warning light came on, on the journey home. iv had the battery and the alternator checked at a local garage. the alternator is working fine putting out between 14 and 14.5 volts? he said the battery is fine and holding charge well? iv being driving the car about with no problems apart from this light? the battery is a halfords battery but looks new? i wasnt sure if the dealer had swopped the batteries but this one isnt large anough or something because everything else is fine and working as it should. anybody have any ideas? got the car from quite a distance away and would like to keep it at home rather than driving it bk to get sorted so any advice would be much appreciated. thanks