The dimensions given are accurate, so there are no problems during installation. Filling with (in sufficient quantity supplied) acid is as always a matter of care. Warning - not first to the top of filling (the acid level rises still not entirely about one centimeter). I notice in the start behavior even at slightly longer Orgelei no difference to previous battery performance ratio therefore (without having accurately measured). How long will keep the part that has to face still out. Because of the reasonable price I'm going but more tolerant.