Halli Hello, I’ve been looking for a few hours but I didn’t find anything really interesting! I have a 12V Power Bull car battery and a microchip controlled charger! Unfortunately, this is not possible because the battery is probably deep discharge, now my real question : Does it bring me now what the battery a quarter of an hour with a starter cable to hang on to the battery of my running car and after that try again? If yes I buy today still en Starterk abel! Achja and do I have to screw up the battery when charging? There is nothing to be found with the manufacturer, thank you already in advance!