I'm having problems with the alarm on my Focus, I'm pressing the button on the key fob and the alarm won't activate, it's the same with the spare key. Now I have an idea what might have happened but I can't be certain, I'd left my phone charger plugged in overnight and it might have run the battery down a little, when I drive to Manchester over the weekend the alarm worked and I thought that the long run on the motorway had charged up the battery enough and the problem had been solved, however the next morning the same thing happened. Any ideas anyone?