Hello! I would like to put a relay to the battery that when I press the button disconnects after a minute (for example) so I can disconnect the battery and at the same time it gives me time to get out of the car and close with the remote. I want to do it because I do not use it daily and so it is quick and easy to remove the battery and leave everything closed, then when activating the button I would have battery again

The problem is that this relay would have to endure the 680ah that the battery has at the time of starting and another problem is that all timer relays have inputs for fine 12v cables and I would like to put the direct battery (the thick cable)
Is there a solution to this or can I just continue removing the battery terminal?

sorry for my english

 

Just use something like this.....

 

I want to try not to open the hood every time I want to disconnect the battery although I see that it is complicated