T6.1 Engine Battery Replacement Low voltage method

[AkA]

I bought my van which has not been used and noticed my engine battery would only keep a strong charge for about 2 days (after 2 days the standing voltage was12.2v) I performed a current load (ignition key in, but not turned to first position) on the engines electrics which gave me 70mA constant load. This proved the battery had a problem and suspected one of the battery cells was damaged. Changed the engine battery and all reset perfectly. No loss of setting on radio and phone just the clock. The Stop start is working which is not always welcomed.