posted a few week ago about a drain on my battery and i'm still at a loss, i've tried the suggested from before, and yesterday i double checked all the lights were off etc removed the stereo put a fully charged battery on (was around 3pm when i did this). now i've just been out to try start and got nothing no central locking no lights on the dash when the key turned and nothing again at all from the engine.

when i put a charged battery on it will start no problems, but as said above, leave over night and i get nothing.

please can anyone help my 99T plate sei sporting?

you need to run a multimeter over the battery and check for a drain
no point guessing

ok, will have to go purchase one.

Hi

You need a multi meter set to amps/current whatever...
Remove one battery terminal and bridge the battery connector and battery post with the multimeter with the ignition keys in your pocket, and everying switched off.
The current should be 10 milliamps about, donno about the FIAT ECU 'dark' current.
If it is large like 100ma then that will flatten your battery over several days. 500 ma 48 hours, 1 amp 24 hours, roughly speaking.
If you dont have a multi meter a screwdriver with a built in bulb for voltage testing will do, in dusk conditions - the bulb should not light at all.
If the current is high you reconnect the battery and in turn break into each of the electrical items at the fuse boxes, anything could be drawing the current.
Or leave the battery disconnected and pul fuses and relays in turn to see which one reduces the current.
Duff relay or the wrong relay easy to locate shorted wire more difficult.
Good luck

Noel

many thanks for the advice, might take me a while though as i've not used a multimeter before.