When i tried to start my car earlier as i turned the key onto 3 for the starter all the electrics died. No interior light, radio, dash, etc. Took the key out try again but the electrics were completely out in key positions 1 and 2, no central locking either, and the fob wouldn't work. In key position 1 the airbag light, and only the airbag light, was very dimly lit.
I went to disconnect/reconnect battery and just a tiny nudge on the nut to start undoing it and the boot light came one. Turned key to 2 and all dash lit up like normal, tried to start and it did it again. Everything dead.
Disconnected/reconnected battery again and it started up fine.