current loss

I already thought about it and change the cables three times

Cumba, the problem is in the spark plugs, because, if the current is colliding and looking for a leak it is most likely, otherwise, it may be that a ground cable is not connected, that the batteries are not bomped to the body or some bolt you have loose of the engine.

In the case that is neither of the two, it may be that the spark plug cables and the are taking from the plàastic or are poorly connected in their ignition order, in that case I suggest that you throw the protective gum towards ATRS, then connect, and then you push the protective gum towards its position so that it is well assembled, it should not be Before doing everything disconnects the batter