Servus together, my battery in my Focus MK3.5 has lt. Tester (tested with a Topdon BT100) now after a good 3 years only 41% of their capacity. (Drive usually 2x 35km per day work path + various private partly also significantly longer distances). Start stop of course always switched off, in between with Ctek MXS 5.0 recharged again and again to do the battery what good – yet it probably doesn’t last too long if you can believe the tester But I wouldn’t be surprised. The battery is a Varta EFB 75AH battery – the previous Ford battery behind the probably also Varta has kept also just under 4 years to total failure. So would like to buy me no more Varta – Exide should be quite good. However, would like to ask some questions which brands you can recommend? Suitable for me is an EFB battery with the size 315x175x175mm.