I thought I might tag this posting from DevaMog member on their forum....Worth checking the battery leads.
Mon 07:23
Msg from Tony Gibson Devamog
160826
If you have a CX model, check the tightness of your battery leads under the rubber covers.
We refuelled at petrol station 3 miles from home. Car lumpy , tried to turn over then all electrics went off. Called a friend out to jump it. Car didn’t register the new charge. The dash clock stopped at 4.10. Even that should run on fine current. So, call the RAC. Sunday in August with petrol station not happy with me blocking the forecourt. 😀🥸. Friend took Jo to our home. I waited ………. RAC diagnosed an extremely slightly loose battery lead to battery connection which couldn’t supply sufficient current to the starter resulting in the 300 amp main fuse blowing!!!! He tested the battery which was spot on. He has a 150 amp fuss on his car which he fitted and the car fired up immediately. I’ll fit a new 300smp tomorrow. Take 2 minutes to check yours!!!! No one got hurt. Otherwise a top day out .
Mike Wright
We had that, I replaced the starter motor.