Bathroom download at the Volkswagen Polo Trend Li

Good night.
I have a problem. It is the second time that the battery of a Trend Line pole is downloaded, I surcharge but then it does not start. The first time takes it to the workshop, but there must be a solution to solve this. Or not?
If someone can guide me?
Thank you very much in advance.
A cordial greeting

First, you have to know who to blame, whether the battery or the aforementioned car is eaten.

To do this, it is enough to put the battery in slow load and when it is 100% recovered it is allowed to rest to cool it and then it is subjected to short circuit for 5 seconds with the uncovered vessels and some tweezers to start. If any of them presents effervescence type aspirin or agitated soda, the battery has died and you must buy a new one.

If done this, the battery presents an effervescence in the Copa or Cocacola Cup vessels without stirring, (row of bubbles in a row that start from the same place) the battery is fine.

battery discharge

is caused by consumption with the contact removed, and there are very few: the alarm, the clock, the radio memory, in some cases the lighter, the interior lights, and the centralized closure (in your car would be heard the noise of the vacuum pump next to the right rear pilot)

to see if the courtesy light of the trunk The first time downloads \ "mysterious \" battery for the trunk light.

If the light works well, (and obviously the one vés by the window), the discharge is on the radio, clock, lighter, alarm, central locking ...

pd the maximum intensity with the contact removed measure between the drum mass and the mass cable of the vehicle in no case must overcome 0.5 amps.

And that is going to be the sparks. All the best.

Hello my opinion is to check if you have any consumption your car check how much the alternator is generating if you have a multimeter check the battery voltage