HRW (or screen) light is possibly a clue, relay sticking?

If poss, once you've charged the battery diconnect it and then wire it to the main lead through an ammeter, you should find a discharge in process, by a process of elimination, removing fuses, you should be able to track down the fault.

First though check the boot and glove box/vanity mirror lights are going off as they should, and are the interior lights going off, with these daft dimmer gimmicks where fitted it can be 30 seconds before the thing goes out, so check that too.

Check radio is silencing and any phone or other aftermarket kit fitted is turning off.

Edited by gordonbennet on 04/11/2014 at 10:26

Is there an immobiliser draining the battery? They sometimes misbehave after 10 years or so.

i have the exact same problem

been checked with a meter nothing draining at all

gone back next day battery completely dead

so strange

any further ideas?