The Bosch 4 year guarantee battery goes flat in 3 days with lack of use. I have tested the drain on the battery and it settles down to 0.31A after connecting the battery up. I have now systematically removed each fuse in turn to see where the current is going. The 0.31A stays the same whichever fuse is removed, both from the ones near the steering wheel and those under the bonnet. Any thoughts on this problem, please.