Hi guys, and let’s go! I’m in despair… Last week I installed my charged battery Yuasa 10V 10 A and wanted to start the S4. Result battery defective/ dead/ or too weak. It doesn’t quite make the jock to run. It spins one, two times and that’s it. Over car bridged and without any problems it was immediately on. I bought a Varta 10V 12 A. Acid pure, all steps noticed, charged and installed. Result the day before you jumps s ofort and ran the whole Saturday super. Like new born. Now the fun starts. Yesterday in the great weather combo put on it. I turn the key and it just happens nothing. No light no gasoline pump. Simply nothing. Battery removed and connected to the charger. Not even the charger charges the battery. Thus is firmly deep discharge. So old gel battery from basement fetched, bridged and charger on it. Charger jumped on. I got the tip from a friend. G El battery also charged, installed yesterday to see if I have a power eater somewhere and leave it standing overnight. This morning key turned. Result light goes and everything else too. But I press on the start button just nothing happens. It can now be that the gel battery that stands for 3 years in the basement is just way too weak. I just don’t know any more. Will the recharged new battery sometimes build up tonight and see if the start button again At the moment I hope that the new Varta battery is simply defective. Someone a tip? What can it be if the starter doesn’t react at all. Did I break something through the stronger battery? So from 10 A to 12 A. My screwdriver said that it can’t actually be and the battery just gets charged slower. Please for help. Thank you!