Hello together, this morning my car didn’t jump any more, although I had started it 3 minutes before (then put it off for a short time), but then suddenly only a very quiet organ and then nothing more… Can this come from normal-sound music listening that the original battery (Opel 55Ah, Bj. 99) therefore gives up the mind? Connected is only a small 4-channel, which brings 4*60rms and is secured with 2*20A…!?! After the bridge I am then half an hour Motorway driven, but the start attempt after that worked only with ach and noise; sounded very weak. Thanks and greeting, Rene.