From what you've described, your alternator isn't charging your battery, hence why the new, fully charged battery you've fitted is losing its charge. Fit a new alternator, or a reconditioned one. Your problem should be solved then :-)
Your boot light is not going out. Mine did the same thing. I would only get a day or two out of a fully charged battery.
Note: New comments appear in the Members Area before the main site
11th Jan 2012, 03:00
From what you've described, your alternator isn't charging your battery, hence why the new, fully charged battery you've fitted is losing its charge. Fit a new alternator, or a reconditioned one. Your problem should be solved then :-)