Basically...
Every now and then my battery will cut off. Sometimes I will press the unlock button on key fob, but battery will seem like it's dead. I have to unlock the car manually and then pop the bonnet, and move the battery around a little, and it the power will be back on but clock and trip will have reset to 0.
It sometimes happens when I start the car too. So when I am about to turn ignition key, the lights come on for half a second, then it all cuts out, again like the battery is dead. I can get the car going again if I slam the door shut or pop the bonnet and move the battery around.
A couple of times as soon as I turn off the car, before I pull the key out, all the power cuts off again.
It has never cut off while driving or anything like that.
Can anybody help?