The counterintuitive part of an e-marker cable is that the chip carries no power. It carries a description, and the description is what allows the device at the other end to accept current it would otherwise refuse.…
Two cable programmes ordered the same length and the same connector, and one of them charged a laptop at the top tier while the other settled two levels below. The difference was not the length or the moulding; it was …
A replacement rate of two per cent means a property holding a thousand installed units is looking at twenty replacements a year, and the arrangement that decides how those twenty are supplied is agreed before the first order rather than …
A batch of chargers came back from a distributor with a failure rate four times the field average, and the returns had been packed as a single pile. Two days went into sorting them before any measurement was taken, and …
Two brands launched chargers with the same internal platform and different exteriors. The first had registered the shape and the logo and could act when a copy appeared; the second had neither and could only complain. The platform was identical, …
Five subjects is what a charger NDA has to cover, and most of them are not the drawings. Confidentiality is usually signed at the first meeting and forgotten at the point where it matters, which is when the factory is …
A brand asked for its charger mould to be moved to a second factory and could not prove which tool was its own. The tool had been paid for, the invoice existed, and the mould carried no identification linking it …
Two disputes about the same charger were settled differently, and the difference was a sealed unit in a cabinet. One buyer had a golden sample recorded with the revision of the enclosure, the firmware and the packaging; the other had …
EVT, DVT and PVT look like three samples of the same thing, and they are not. The three builds are separated by the questions they answer, and a programme that runs them as three deliveries usually reaches the third one …
Three prototypes is the working number on a charger programme, and a brief that asks for one usually receives a unit that satisfies nobody. Twelve units are built at the first stage, three at the second and thirty at the …
A charger went to tooling with a two-piece enclosure and came back with a draft angle that could not be moulded at the wall thickness specified. The design was correct on paper; the two numbers had never been checked against …
Two brands briefed the same charger in the same quarter. One approved a working sample and released the tooling; the other ran the sample through a documented gate with a thermal measurement and a compliance review first. The second programme …
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