Electric Car Charging Point: Tethered or Untethered?

red electric car charging

What Is A Tethered EV Charging Point?


Put simply, in a tethered home EV charging station, the electric car cable that is used to charge your electric vehicle (EV) is permanently fixed to the charging station.

pod point ev charger
PodPoint Tethered Home Charging Point Available Via e-zoomed (credit: PodPoint)

What Is An Untethered EV Charging Station?


In an untethered electric car home charging unit, the EV charging cable that is used to charge your EV is not permanently fixed to the charging station. Such an EV home charging station is usually referred to as ‘socket only’.

ev home charger
EVBox Untethered Home Charging Point Available Via e-zoomed (credit: EVBox)

What Is Length Of A Cable In A Tethered Charging Unit?


There is no one length. It varies depending on the manufacturer and charging unit model. For example, an EVBOX Elvi charging point comes with either a 4 m or 8 m cable, depending on which specific Elvi model you choose. We at e-zoomed recommend choosing an electric car charging station that has at least a 5m tethered cable. It is far more practical!

EV charging point
Wallbox Tethered Home Charging Point Available Via e-zoomed (credit: Wallbox)

What Is Length Of A Cable In A Untethered Charging Unit?


There is no one length. It varies depending on your requirements but usually sold at lengths between 5 m and 10 m. We at e-zoomed sell electric car charging cables (type 1 and type 2) in various lengths, from 2m up to 25m! We always recommend purchasing at least a 5m EV charging cable. It is practical for both home EV charging and public EV charging.

electric car charging cable
Electric Car Charging Cables Available Via e-zoomed

Which Is Better: A Tethered Or Untethered Electric Car Charging Cable?


In general, most EV drivers carry an EV cable in their electric car boot to enable EV charging when on the road. However, the majority of time, an electric car is charged at home and usually overnight when the tariff rates are cheaper. We always recommend using green energy to power your home and plug-in electric car. At e-zoomed we have fantastic green energy partners, to include ecotricity and Good Energy. To switch via e-zoomed is easy. Simply follow this link and save on energy bills every year!

ecotricity green energy UK
Switch to ecotricity Green Energy via e-zoomed

By owning a tethered home EV charging station, the EV owner is not inconvenienced by removing the cable from the boot every time the green car needs charging. Practically the best option, given the weather in the UK and avoids the hassle of uncoiling and coiling an untethered cable.

On the flip side, the length of the tethered cable is fixed and can sometimes have limitations for home charging if you need to change where you park or the type of electric vehicle to be charged.

Tethered cables can be stowed away in a tidy and easy manner which avoids any potential for tripping or injury when left running across the driveway. There is also the added comfort of security i.e. the cable cannot be removed or stolen from the charging station. Replacing a cable can be expensive and in most cases costing over £100, if not much more.

EV cable type 2
Type 2 EV Charging Cable Available Via e-zoomed

The advantage of untethered cables is that the EV driver is not restricted to a particular connector type, specially if the household has more than one electric car and different connectors are required or the household is looking to buy EV’s in the future that may need other connector types. However, if the family only owns one EV, then a tethered unit will do just fine. With untethered you are not limited to the length of the cable i.e. much more flexibility.

smmt new car registration
SMMT New Car Registration (credit: SMMT)

Lastly, as EV adoption increases, you may have guests that need to charge their EV. The choice between tethered and untethered will have an implication on their ability to charge, if the connector type is not the same. However, an adapter maybe used.

In conclusion, there is no straightforward answer. It depends on the circumstances, the type of EV you own, your budget, aesthetics, future proofing and your personal choice.


We at e-zoomed are more than happy to assist you with all your EV needs to include:


And more!  Do sign up to our e-newsletter to learn more about electric cars. Also follow us on Facebook, LinkedIn and Twitter. 



Author

Ashvin Suri

Ashvin has been involved with the renewables, energy efficiency and infrastructure sectors since 2006. He is passionate about the transition to a low-carbon economy and electric transportation. Ashvin commenced his career in 1994, working with US investment banks in New York. Post his MBA from the London Business School (1996-1998), he continued to work in investment banking at Flemings (London) and JPMorgan (London). His roles included corporate finance advisory, M&A and capital raising. He has been involved across diverse industry sectors, to include engineering, aerospace, oil & gas, airports and automotive across Asia and Europe. In 2010, he co-founded a solar development platform, for large scale ground and roof solar projects to include the UK, Italy, Germany and France. He has also advised on various renewable energy (wind and solar) utility scale projects working with global institutional investors and independent power producers (IPP’s) in the renewable energy sector. He has also advised in key international markets like India, to include advising the TVS Group, a multi-billion dollar industrial and automotive group in India. Ashvin has also advised Indian Energy, an IPP backed by Guggenheim (a US$ 165 billion fund). He has also advised AMIH, a US$ 2 billion, Singapore based group. Ashvin has also worked in the real estate and infrastructure sector, to including working with the Matrix Group (a US$ 4 billion property group in the UK) to launch one of the first few institutional real estate funds for the Indian real estate market. The fund was successfully launched with significant institutional support from the UK/ European markets. He has also advised on water infrastructure, to include advising a Swedish clean technology company in the water sector. He is also a member of the Forbury Investment Network advisory committee. He has also been involved with a number of early stage ventures.

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