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This sounds very likely, considering the crazy high price of Dell's own AC adapters, but a quick check of your link and the rest of the igo website says nothing to confirm (1) The id chip exists (2) the igo contains such a chip (3) the igo tips can be used with non-igo adapters (the igo adapters seem even more expensive than the dell ones(!) which defeats the purpose) Can you please add some links to back this up?
– MGOwen
Commented May 26, 2010 at 1:23
Dell cables are three wire, the presence of the third wire and the identifier are necessary for the charging system to work. This is especially important if any LiPo battery packs are in the equation. That added expense might prevent other more expensive issues.
– Fiasco Labs
Commented Dec 1, 2012 at 18:37

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