recently one of the guys went through and checked the batteries. Two controllers were stuffed.
I took them into work where they have sat. Today being ekka Wednesday I came into do some work and figured all work and no play - so decided to look at them.
Took the backs off. Used a power supply (3V) to connect directly to the PCBs and both booted OK.
So this means that the leaky batteries had not gotten onto the boards.
One contact completely eaten away. I replaced with a pretty didgy wire contact. Will see how that goes. If it's unreliable then I will have to cut up some springy material.
Cleaned the other contacts with wet and dry. Even then one of the contacts was high resistance. Gave up and folded up a piece of brass shim and put it over the contacts that connect the two batteries.
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