Lightly baked dc-in board
So my laptop had some trouble with the DC in board - the cable neds to be jiggled so that the battery knows to charge. So I ordered a 2nd hand one for $35 from the ibook scrap yard. Meanwhile I have a temporary fix that works but immobilises me somewhat. Photo below.
The little "knot" above the cable tie provides just the right amount of upward pressure to keep the supply connected ... for now ... Crack the case on the weekend :-)
[Update] even small amounts of movement can re-start the problem. Fortunately I have this photo for a reference when I need to re-tie it.