Moin moin, I got a V70 from 04.99 from a estate. 2.5 liters 144 hp automatic, ran 290000 km. The car stood for 3 months. The car makes a well-kept impression and was always maintained. The previous owner bought a new alternator, which is in the trunk. He also installed a double Din radio with Bluetooth etc. He did not jump on,thereafter a new battery was installed and he ran. I left it with the new battery for 2 days and the battery is completely empty. I have such a guess that it may be on the radio. The radio goes out if you turn off the car but that would be my first guess now. Do you have an idea otherwise what can pull even so extreme current when the car is standing ? The new battery is already gone, now I can buy another one again. Maybe you have an idea ? I would also like to read it out or watch it with a measuring device if you recognize somewhere where it is So much electricity.