SDG #037 Anglink USB Charger Electrocution Risk?

After widespread warnings about cheap USB chargers with almost no isolation between mains and the low voltage output, this follow-up revisits the Anglink multi-port USB charger to ask whether it belongs in the same dangerous category. The concern with the notorious examples is not just poor build quality but a genuine electrocution risk: mains potential separated from the 5V rail by a fraction of a millimetre of PCB, an undersized or unrated transformer, and no functional Y capacitor or safety spacing to speak of.

The assessment here focuses on the things that actually decide whether a charger can kill you rather than cosmetic details. That means looking at the physical gap between the primary and secondary sides of the board, whether the transformer construction offers real reinforced insulation, how the fuse and input protection are implemented, and whether slots or routing on the PCB genuinely increase creepage distance rather than just looking the part. Output behaviour, ripple and port current sharing matter for how well your phone charges, but they are secondary to the isolation question.

For buyers, the practical takeaway is that brand names on charging accessories tell you very little, and two units that look identical externally can differ enormously inside. If you rely on a multi-port charger for phones, tablets or anything that touches your skin while charging, it is worth knowing which specific design you have. The video sets out what to inspect and how the Anglink unit compares against the genuinely lethal designs circulating online, so viewers can judge the risk rather than guess at it.