Cables often fail not because the wire itself has worn out, but because repeated bending at the same point, usually right where it meets the plug, gradually weakens the connection inside. Anyone who has ever pulled a charger out by the cable rather than the plug has likely contributed to this kind of wear without even noticing.
The habit of wrapping a cable tightly around a hand or an elbow, over and over in the same direction, twists the internal wires slightly each time, and this twisting adds up over months of repeated use. A looser, figure-of-eight coiling method avoids this build-up of twist entirely and keeps the cable lying flat and relaxed.
Storage matters just as much as coiling Once coiled, a cable benefits from being secured loosely with a soft tie or a strip of fabric rather than anything sharp-edged, which can otherwise dig into the outer coating over time. Cables left loose in a drawer tend to tangle with others, and untangling them often involves exactly the kind of sharp bending that causes damage at the plug.
Paying particular attention to the last few centimetres near the plug, where the cable should never be bent at a sharp angle, prevents the most common type of failure before it starts. A cable that always leaves the plug at a gentle angle rather than a hard bend will usually outlast one that does not.
With this small change in habit, cables and chargers around the house last considerably longer, and the frustration of a cable failing right at the plug becomes a much rarer event.
Teaching children the same loose coiling habit early on, rather than letting them wrap cords however feels quickest, saves a surprising number of chargers over the years in a busy household. Labelling cables that look identical, with a small tag or a wrap of coloured tape, also reduces the tugging and pulling that happens when several people are searching for the right one at the same time.
