Over the last week when starting the car I have noticed the battery does not seem to be fully charged but the car did manage to start. Then Saturday went to start the car not enough charge to start it. So jump started the car via my birds Fiesta Finesse (slightly embarrassing). My questions are :- 1. Can I buy a new battery from say Halfords or does it have to come from a stealer ? 2. How do I take the battery out ? 3. I believe the alternator is ok because when the car is running the approx 14.50 volts at the battery that's with lights on, heating on, heated seats on etc. Is this correct ? Thanks.