Ok, so replacement is a better long term strategy than removal
Basically car did 30 miles 3 weeks ago and has been started/shuufled around every other day or so since, but might have actually managed another three miles in that time. Car has probably done 75 miles since February last year and perhaps 500 miles since Feb '14.
Battery was brand new seven weeks ago. Fault is that the car was really sluggish to start, initially just clicking, but eventually churning into life when the key was held.
I have yet to run KWs charging tests, and suspect that the car simply needs a decent run to recharge it properly...
But seeing as it's gfs car, I am going belts and braces and the consumer relay is obviously on the list. Boot light and glovebox both ruled out as starters. It might also be power sounder related as local VX dealer modified the PS loom following battery issues six or so years ago, (they've been closed at least four years).
Presumably the only definitive test for the consumer relay is the substantial drop in current to a trace value when it times out