EV draagbare (oma) oplader Weerbestendig verlengsnoer
91% ⭐⭐⭐⭐⭐ Review Rating
Built & Tested In UK · Free Delivery (orders over £99) · 2 Year Warranty
FAQs
Is this extension lead truly weatherproof and suitable for outdoor use?
Yes. It features a genuine IP66-rated socket meaning it can withstand powerful water jets and continuous outdoor exposure. The heavy-duty H07RN‑F rubber cable is built for harsh environments, UV-resistant, and stays flexible from –25 °C to +55 °C
What lengths are available, and does it support a “granny charger”?
It is available in 2 m, 5 m, 10 m, 15 m, 20 m, or 25 m lengths. It’s especially designed to extend a UK-standard 13 A “granny” (portable) EV charger.
What safety features are included?
It includes an inline RCD (Residual Current Device) to reduce electric shock risk—though you must press the reset button after reconnecting power. The cable also passes PAT testing. The socket can be locked with a padlock (up to 5.5 mm shackle) to prevent unauthorised access.
Can I run the cable through my letterbox?
Yes, there’s an optional letterbox adapter for door openings at least 25 mm. Otherwise, you can choose the standard fixed version.
91% ⭐⭐⭐⭐⭐ star reviews - that's a lot of happy customers...
Customer Reviews For Wottz® Charger Extension Lead
Jamie G
Date of experience: Jan 9, 2024
Product is brill, service has been good. Nice to have the option to include car so they check it’ll fit. I got the extension cable and it works perfectly, is weatherproof, and has additional safety (RCD) vs using a standard extension reel so I’ll feel more comfortable using it 👍
Whole thing fits nicely in the trunk so it’s always with me 😊
Ian N.
Date of experience: Aug 11, 2023
I used their website-based chat facility to answer some pre-purchase queries regarding compatibility, etc. All good: order placed.
Delivery was quick and the 5m extension cable looked robust and well made. We tested it on both of our electric cars without a problem.
We plan to take it with us on our upcoming trip where charging facilities are not plentiful and a granny charge may be needed. This gives peace of mind for those times when the socket to EV is beyond the standard OEM length.
David J.
Date of experience: Jan 10, 2023
Good advice via chat on the best solution for my problem and then speedy delivery of the Granny Cable extension. This has worked really well and I got continued support on a technical issue to find a way around the domed 3 pin plug on my Mercedes connector. I’m a very happy customer.
Wottz® Portable/Granny Charger Extension Lead
Extend Your Charging Reach Safely & Reliably - Wherever You Park.
Need to charge your EV from a distance? Introducing the Wottz® EV Portable/Granny Charger Weatherproof Extension Lead - the perfect solution for EV drivers who rely on a standard 3-pin “granny” charger but need extra reach.
Whether your charging point is tucked away in a garage or your vehicle is parked further from the socket, this rugged extension lead gives you the flexibility and convenience to charge wherever you need—without compromising on safety.
Built to withstand the elements, this lead features a genuine IP66-rated weatherproof socket, heavy-duty H07RN‑F rubber cable, and a built-in inline RCD for added protection. Available in lengths from 2 m to 25 m, it’s ideal for outdoor use and even offers an optional letterbox adapter for routing through your front door.
It’s tough, portable, and designed specifically for EV charging—making it the ultimate accessory for worry-free home charging.
Weatherproof Qualities
The weatherproof socket's IP66 rating means that it remains watertight, even when subject to powerful water jets from any direction. Unlike any DIY store extension leads which are often sold as 'weatherproof', this lead can actually be used for prolonged periods outside.
Simplicity Of Use
It simply connects to a UK 13A socket, and enables your granny charger to be extended by 2m to 25m. If you would like to purchase a Wottz Portable (Granny) Charger you can find them here - Portable/Domestic Granny Chargers.
Protective Features
The inline RCD is a life-saving device that is designed to reduce the risk of receiving a fatal electric shock.
Made from 1.5mmsq industrial specification H07RN-F rubber cable, specifically manufactured for harsh environments with high mechanical, chemical, water and UV resistance. Flexibility and performance is retained over a wide temperature range (-25 to 55°C).
Letterbox Compatible
If the extension needs to be run through a letterbox on your front door, an optional extra connection can be added onto the cable which enables you to run the cable through your letterbox! Minimum opening size 25mm.
Specification
Available in 2m, 5m, 10m, 15m, 20m and 25m lengths - select the required length from the drop-down list above.
13A rubberised plug.
Weatherproof IP66 rated exceptional quality 13A socket, for connection to the 13A plug on a 'granny' charger. An IP66 rating means that the socket is protected against powerful water jets.
Lockable
To guard against unauthorised access, the socket can be locked shut with a small padlock (max 5.5mm diameter).
Unique Features
This is the only weatherproof extension lead available in the UK with a socket that can accommodate the chunkier 13A plugs now fitted to many EV chargers.
Whilst standard DIY store extension leads are manufactured from plastic connectors and cheap, easy-to-damage 1.25mmsq max PVC cable, these leads are in a different league. They are carefully constructed in our UK workshop from European manufactured (subject to stock) 1.5mmsq H07RN-F rubber cable, which is specifically manufactured for harsh environments; its safety and performance under extreme conditions simply cannot be beaten. The IP66 weatherproof socket provides protection even against powerful water jets (so it can withstand even the Great British Weather!) and has proven itself over the years as an exceptionally robust unit.
Safety Notes
It is the responsibility of the EV user to consider the manufacturers guidance, the safety of the supply and any other risks, before deciding whether to use an extension lead with an EV charger. Given varying advice from manufacturers and varying risks in a whole myriad of charging scenarios, we cannot make a blanket recommendation that an extension lead should be used. We simply supply high quality extension leads which are compatible with the 13A plug fitted to EV chargers. Compatibility with the charger itself is not inferred or implied. It is down to the user to determine the appropriateness of the application; if in any doubt, consult an electrician. EV Cables therefore cannot accept responsibility for any damage caused as a result of using an extension lead.
Always ensure that leads are fully uncoiled before use, as coiled leads can become warm when used at high currents.
Due to the relatively high current used by EVs, we recommend checking the plug fuse clips remain tight annually, or if the plug ever feels warm stop using it immediately.
All EV extension cables are PAT tested.
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Specification
- Inline RCD
- Rubberised cable, 3G1.5mm^2, 10.5mm outside diameter
- IP67 BS1363-2 socket