Joybuy Insights

Choosing a portable Type 2 3.5 kW EV charger: what should you look for?

A portable Type 2 3.5 kW EV charger is useful if you want to charge at home, on holiday or as a temporary emergency solution using a suitable 230V socket. However, many portable electric car chargers look alike. The differences often come down to charging current, protection, plug, cable and controls.

Using too high a charging current with an unsuitable socket can cause overloading. Terms such as “smart”, “waterproof” and “fast charging” also don’t always tell you whether a charger is right for your needs. So check the technical specifications first, then consider any extra features.

Three common pitfalls when choosing a portable EV charger

1. Confusing 3.5 kW with the actual charging speed

A 3.5 kW charger can theoretically deliver a maximum of around 3.68 kW at 230 V and 16 A. Actual charging performance also depends on the car’s onboard charger, the battery’s state of charge and the electrical installation. For example, a plug-in hybrid may accept less power than the charging cable can provide.

So check not only the cable’s maximum power, but also what your car supports.

2. Using 16 A with any socket

A Type 2 16A charging cable or portable home EV charger is often connected to a standard household socket. That doesn’t automatically mean every socket is suitable for prolonged use at 16 A.

An older installation, a loose wall socket, a long extension lead or incorrect earthing can pose risks. Plug the charger directly into a suitable, correctly earthed Type F socket and choose a charging current that matches the circuit and connection. If in doubt, have it checked by a qualified electrician.

3. Overestimating smart features

A smart EV charger with Wi-Fi may let you schedule charging through an app, but Wi-Fi doesn’t change the maximum power or the safety of the circuit. Also check whether a compatible network is required, whether Bluetooth is available and whether you can operate the charger without an app.

Important specifications to check

Charging current and connection

For a 230V EVSE charger, the combination of voltage, current and phase is important. A single-phase 3.5 kW charger usually offers these settings:

  • 8 A for a lower load on the connection;
  • 10 A as an intermediate setting;
  • 13 A for faster charging, if the circuit allows it;
  • 16 A for maximum charging power, when the socket and installation are suitable.

An adjustable 8A 10A 13A 16A charging current offers more flexibility than a charger with just one fixed setting. The Type 2 plug must match the connection on your electric car or plug-in hybrid.

Protection and casing

Check which protective features are actually listed in the product information. Relevant examples include protection against:

  • overvoltage and undervoltage;
  • overloading;
  • overheating;
  • earthing problems;
  • leakage current.

The TDC ENERGY SNK03 lists Type A + DC 6 mA leakage current protection, earth continuity monitoring and overtemperature protection. The product information also lists an IP66 rating. IP66 indicates protection against dust and powerful water jets, but it doesn’t mean the charger can be used underwater.

The Feyree Type 2 16A 3.5KW Portable EV Charger is listed as IP65. Always read both ratings alongside the instructions for installation, storage and use.

Cable length and controls

A 5-metre charging cable often gives you extra reach from the wall or socket to the car. Measure the distance beforehand and make sure the cable won’t run across a road, sharp edge or walkway.

A display or LED indicator shows the charging status. App control is especially useful if you want to charge at set times or schedule a session remotely. Check whether the charger can also be started manually, so you’re not entirely dependent on Wi-Fi or Bluetooth.

Recommended options for different types of user

Suitable for: Budget-conscious beginners
feyree Type2 16A 3.5KW Portable EV Charger

feyree Type2 16A 3.5KW Portable EV Charger EVSE Charging Cable 5m with Schuko Plug Current Adjustable for Electric Car Charger

Why it suits this user: This portable plug-in hybrid charger offers a simple connection via a Schuko plug and four charging settings, making it a good choice if you’re new to portable charging.

How this product helps avoid the pitfall

The current can be set to 8A, 10A, 13A or 16A. According to the product description, the OLED display shows the charging status and error messages.

Key benefit & highlights

5-metre cable, Type 2 connection, adjustable current and a listed IP65 rating.

Suitable for: Buyers looking for premium quality
TDC ENERGY SNK03 Portable EV Charger

TDC ENERGY SNK03 Portable EV Charger, Type 2, 3.5 kW

Why it suits this user: A good choice if you want to schedule charging via Wi-Fi or Bluetooth as well as charge manually, and value clear status information.

How this product helps avoid the pitfall

The four charging settings help ensure that 16 A isn’t automatically the only option. The product information lists several voltage, temperature and leakage current protections.

Key benefit & highlights

1.9-inch LCD screen, Wi-Fi and Bluetooth, an IP66 rating according to the product information, and a 5-metre cable.

Suitable for: Specific needs & intensive use
feyree 7KW EV Charger Type2 32A

feyree 7KW EV Charger Type2 32A Adjust Current Fast Charging Socket Version Wall-Mounted EV Charging Station

Why it suits this user: For anyone who charges at home regularly and wants a wall-mounted option with adjustable current up to 32 A. This isn’t a standard plug-in charger.

How this product helps avoid the pitfall

The adjustable settings range from 8 A to 32 A. Only use higher settings with a suitable electrical installation and in accordance with the installation instructions.

Key benefit & highlights

Wall-mounted design, 5-metre cable, Type 2 connector and an IP65 rating according to the product description.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety regulations.

How to charge an electric car safely from a socket

Only use a portable charger in accordance with the manual. Keep these points in mind:

  1. Plug the charger directly into a suitable, earthed 230V socket.
  2. Don’t use an unapproved adapter or extension reel.
  3. Before each session, check the plug, Type 2 connector and cable for damage.
  4. Stop charging before unplugging the charger.
  5. Keep the cable away from water and sharp edges, and don’t place heavy objects on it.
  6. Let the control unit cool down after use before putting it away.

An IP rating is no substitute for correct use. If the plug becomes hot, the connection is loose, an error message appears or the cable is damaged, stop the charging session.

Frequently asked questions

Is a portable Type 2 3.5 kW EV charger suitable for every electric car?

Not necessarily. The car must support AC charging via a Type 2 connection. Also check the car’s maximum charging current and the manufacturer’s requirements. According to their product information, the chargers listed are intended for compatible electric cars and plug-in hybrids.

How much does it cost to charge with a portable electric car charger?

The cost of electricity depends on your tariff and the number of kilowatt-hours you charge. A 3.5 kW charger doesn’t determine the price by itself. The calculation is: kilowatt-hours charged multiplied by the price per kilowatt-hour. Charging losses can increase actual consumption slightly.

Can I use a 5-metre charging cable outdoors?

That depends on the IP rating and the instructions for the specific model. The cable and control unit should be positioned somewhere dry and stable, where they’re protected from damage. Don’t use the charger underwater, and don’t coil the cable tightly while charging unless the manual explicitly allows it.