Ford Focus ST '22 Battery Drain! in Ford Focus Club Posted January 30 @LukeJQuinnbeen following thia thread a while. Shame to hear about the accident mate! My battery on my car has run flat a few times. Had RAC out to boost the car, had to have my Dad come with Jump leads etc... once had it in at Ford for them to just recharge it over night and do a "software" update. Do you know if there was a batch number/specific battery that was fitted and what battery do you have now? Tia.