How do you get into a locked MINI Cooper with a dead battery?

On my 2004 Mini Cooper I jacked up the car and removed the power steering fan (two 13mm nuts) to gain access to the battery terminal on the starter solenoid (the one with the battery cable). I attached a battery charger to the terminal and powered the door locks long enough to open the driver's door. It's tight fit, but I have large hands and was able to do it.