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How to Choose a Portable EV Charger

Portable EV chargers are a convenient way to charge your electric vehicle (EV) at home or on the go. They are relatively inexpensive and easy to use, making them a great option for EV owners who do not have access to a home charging station.

When choosing a portable EV charger, there are a few key factors to consider:

1. Current and voltage

The current and voltage of a portable EV charger determine its power output and safety. The voltage in most households is 220V. In China, portable EV chargers typically have a current rating of 8A, 10A, 13A, or 16A, and use single-phase electricity. The corresponding power output is approximately 1.6kW, 2.2kW, 2.8kW, or 3.5kW (current x voltage).

It is important to consider the charging time required for your EV. To ensure safety, most households use a current rating of 10A. This will provide approximately 22kWh of electricity in 10 hours, which is sufficient for overnight charging and emergency use.

It is also important to check the socket in your home. Sockets that can support a current of 16A typically have a larger spacing between the pins.

The current and voltage of a portable EV charger vary depending on the region. Here is a table of the common current and voltage standards in different regions:

North America120V15A, 20A, 30A, 40A
Europe230V10A, 16A, 32A
Australia230V10A, 15A, 20A, 32A
Japan100V15A, 20A

It is important to choose a portable EV charger that is compatible with the electrical standards in your region.

2. IP rating

When using a portable EV charger outdoors, it is important to consider the product’s Waterproof and dustproof grade (IP rating). The IP rating indicates the level of protection against dust and water ingress.

It is recommended to choose a portable EV charger with an IP rating of at least IP65. IP65 indicates complete protection against dust and protection against water jets. It is ideal for the control box (adapter) to have an IP rating of IP67, although this may be difficult to find. At the very least, the connection point should have an IP rating of IP67.

It is not recommended to use a portable EV charger in extreme weather conditions, as the control box is susceptible to water ingress.

3. Certification

In addition to the CQC certification mentioned above, there are other regional safety certifications for portable EV chargers. Here are some of the most common certifications:

  • North America: UL, CSA
  • Europe: CE, TUV
  • Australia: SAA
  • Japan: PSE

Some EV manufacturers, such as Tesla, also have their own certification requirements for portable EV chargers. It is important to check the compatibility of the charger with your EV before making a purchase.

4. Charging speed

Portable charging guns are available in a variety of charging speeds, from 16 amps to 64 amps. The higher the charging speed, the faster your EV will charge. However, faster charging speeds also require more power, so you may need to upgrade your home’s electrical wiring to accommodate a higher-amperage charging gun.

5. Plug type

Portable charging guns are available with a variety of plug types, including NEMA 5-15, NEMA 6-20, and J1772. The plug type you need will depend on the type of outlet you have in your home or garage.

6. Cable length

Portable charging guns come with a variety of cable lengths, from 10 feet to 25 feet. The longer the cable, the more flexibility you will have when charging your EV. However, longer cables are also more expensive.

7. Safety features

Portable charging guns should have a number of safety features, including overcurrent protection, overvoltage protection, and ground-fault protection. These features will help to protect you and your EV from electrical hazards.

8. Price

Portable charging guns range in price from $200 to $1,000. The price of a charging gun will depend on the factors listed above, as well as the brand and quality of the product.

Here are some additional tips for choosing a portable charging gun:

  • Read reviews of different charging guns before you make a purchase.
  • Consider your needs and budget when choosing a charging gun.
  • Buy a charging gun from a reputable manufacturer.


With a little research, you can find the perfect portable EV charger for your needs. Consider the factors discussed in this article to make an informed decision.



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