[Mondaveo]

So the local Ford dealer had the cheapest quote for a new battery, surprise ($207.50 for a "Ford DIN75L"). I went down and was assisted by a delightful young mechanic there who delivered the news that the current battery was good, surprise surprise (12.63 V, 677 CCA of a rated 720 CCA).

I observed it is a Motorcraft battery, so presumably not the car's original.

The 'Low battery' message had remained on the cluster all week but I'd only been checking on the car, not driving anywhere. Once I started the motor it didn't recur. Maybe it needs the engine started to realise when the battery's been recharged?

Just for interest, I asked the mechanic about the necessity of doing the BMS reset. He confirmed it can be done in IDS, but seemed to misunderstand the question as he briefly discussed how manufacturers are making it harder to undertake service elsewhere and that you run the risk of the immobiliser activating, something he'd seen before apparently.