Scirocco Central

Hi everyone,
I am a new Scirocco owner, and I've got a 2000 R (used) from someone. And I have noticed that the battey there was weak, so I installed a new one. Though, the new one also seems weak to me, since with the ignition off it allows me listening to music from my usb around 20 minutes and then shuts off. And when it's cold, the time frame is even less. And I thought that maybe I should get that battery cover in (you know, like the OE piece that was supposed to be there from the factory). Because on mine it's missing. Maybe that is the case? Or the cover is only for looks and the problem is more about some electrical stuff or wiring?
Thanks in advance!

Battery cover is just cosmetic.

Do you use your car for short journeys as that can put a lot of strain on thr battery especially in winter and if you regularly use the heated screen, heated mirrors and heated seats.

Give the battery a good charge by giving the car a good long run or connect a battery conditioner for a day.

Also, all batteries are not equal and cheaper batteries tend not to perform or last as long as a more expensive one.

Thanks, man, you answered my question! I will take a battery charger from a friend of mine and will charge it, as you said. And about the cover, I guess I will grab one (https://www.carid.com/battery-covers/), as all underhood stuff looks way neater than when all wiring's visible.
At least now I know that the problem is 100% about the battery, as having read some stuff in the internet the day before I already started to believe that that plastic piece really does something...

Also, age of car? I know from experience that some of the earlier FW versions of Car entertainment systems and such actually caused a battery drain, you need to update them to stop this.

Wow, thanks for the info, man... Mine is 2000....

OOPS face palm i meant age of headunit FW, you might need VCDS to find that out.