So at the weekend, this all happened: Saturday - Drove 5 miles, battery light came on and car stalled, used momentum to restart, car wouldn't start when I went to leave, airbag light on Jump started car to drive home, same thing happened 4.5 miles later Sunday - Charged battery over night, car started well, drove 15 miles with no problems - was during day so not sure about lights functioning Check across battery terminals with car running - 12.05V Monday - Car started in the morning but only offside side lamp was working, replaced with brand new battery and it's no better, same situation with car not running which rules out the alternator being the only problem Leaves me in a bit of a silly situation as it's dark when I leave for work and dark when I finish work! Anyone have any suggestions? Cheers