The difference, plainly
A tethered charger has its cable permanently attached, coiled on the unit like a garden hose. You lift, plug in, done. An untethered charger is a socket on the wall: you fetch a cable, connect both ends, and take it with you when you like. Tethered costs slightly more; the gap is small against the install itself.
Day to day, tethered wins on friction. Plugging in takes five seconds in the rain with your hands full, and that convenience compounds over a thousand charges. The cable lives outside, which is what it is built for, and the length you order decides how far round the car it reaches, so it is worth choosing that length deliberately.
Where untethered earns its keep
An untethered socket does not care what plugs into it. A household running two cars with different connector types, or one that changes cars on short lease cycles, keeps its options open with a socket and a cable per car. The wall also looks tidier with nothing coiled on it, which matters more to some households than they expect.
The cost is the ritual: fetching the cable, connecting both ends, and putting it away, every time. Households that keep the cable permanently plugged in have quietly bought a tethered charger with extra steps, which is worth being honest with yourself about before choosing.
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One EV, keeping it a while, charging daily: tethered, with a cable long enough to reach either side of the car. Two cars, mixed connectors, or a habit of changing cars often: untethered. If you are genuinely torn, tethered is the choice people regret less, because convenience is the thing you feel every single day.
Either way the unit must be smart and schedulable, so the overnight tariff does its work regardless of cable style. Settle the speed first, covered in 7kW or 22kW, then compare quotes from trusted chargepoint installers with the cable question answered, and the quote comparison becomes like for like.
Compare EV charger quotes
Up to three trusted chargepoint installers quote for the work. Free, no obligation.
Compare EV charger quotes