^^^^^ 466 the answer is, surely, a fusible link within the cell itself.
On more than one occasion I've seen a lead-acid automotive battery where the internal lead straps have melted inter-cell or individual plates have self-disconnected, simply by melting the internal connection
I made a couple of posts on the R&N thread....synopsis...charging unit and battery unit don't interface properly. boeing appear to have failed to ensure they did.....otherwise you wouldn't change out so many rechargeable batteries in such a short space of time..
Last edited by cockney steve; 5th Feb 2013 at 12:26.