The IYILO 40-amp NEMA 14-50 plug-in EV charger is a new entry from the IYILO brand that emphasizes safety with integrated temperature sensors in both the plug and connector. YouTube reviewer State Of Charge praised its flexible power configuration and included 25 ft cable as one of the best on the market. However, the advanced Dynamic Load Balancing feature requires a separate hardwired energy meter, and the automatic temperature shutdown/resume functionality may not be ideal for all users. This unit is best suited for those wanting a safe, flexible plug-in charging solution with upgrade potential to full 48-amp hardwired capability.
Full review
Safety and Temperature Monitoring
The IYILO 40-amp NEMA 14-50 charger distinguishes itself through its advanced temperature monitoring system, which incorporates NTC sensors in both the NEMA 14-50 plug and the SAE J1772 connector. According to Tom Moloughney of State Of Charge, the temperature sensor in the NEMA plug is a critical safety feature that can reduce power from 40 amps to 32 amps once the temperature reaches 185°F (85°C), and shut down completely at 203°F (95°C). This system generates notifications in the app and displays real-time temperatures, which Tech Motoring's Paul noted as particularly useful for monitoring charging conditions. The integration of these sensors addresses common concerns about electrical outlet overheating, as highlighted by the Recharge Rescue series that State Of Charge has covered multiple times. However, some reviewers have questioned whether the automatic resumption of charging after a temperature event is ideal, suggesting that a manual resume option might be safer to ensure proper inspection of the electrical connection before continuing.
The temperature monitoring system's effectiveness was demonstrated during testing by Bowe Family EV's Chris Bowe, who noted that the IYILO charger detected a dangerous NEMA 14-50 outlet failure that other chargers missed. This capability was further validated by BeatTheBush DIY's Francis Bush, who emphasized that the temperature sensors allow for dynamic current control, reducing it if temperatures rise too high or stopping it altogether. Technically Jeff also praised the feature, calling it a 'really nice safety feature and a huge benefit for that peace of mind.' The system's ability to prevent overheating while maintaining charging efficiency makes it a standout safety feature, particularly for users who may not be familiar with electrical safety protocols.
Performance and Charging Speed
The IYILO 40-amp NEMA 14-50 charger delivers a maximum power output of 9.6 kW (40 amps at 240 volts), providing approximately 35 miles of range per charging hour. This performance level is significantly faster than standard Level 1 chargers, with Tom Moloughney of State Of Charge noting that it offers up to 7 times faster charging speed. According to IYILO's official specifications, the device can deliver up to 38 miles of range per hour at 40A using the NEMA 14-50 plug, making it suitable for daily charging needs of electric vehicle owners. The plug-and-charge functionality allows for instant charging as soon as the vehicle is connected, which Tech Motoring's Paul found particularly convenient for users who want to start charging without additional setup.
The charger's performance was also evaluated by the IYILO team, who noted that it can deliver up to 38 miles of range per hour at 40A. This performance is consistent with the charger's ability to provide rapid charging while maintaining safety through its integrated temperature monitoring system. The device supports multiple charging modes, including scheduled charging, RFID card, and plug-and-charge, which enhances user convenience. Additionally, the IYILO app allows users to track energy usage and cost, manage multiple user accounts, and set Time-of-Use (TOU) rates, providing a comprehensive charging management solution. The integration of these features makes the IYILO 40-amp NEMA 14-50 a versatile option for users who want both speed and smart charging capabilities.
App and Smart Features
The IYILO app provides a smart, intuitive interface for managing charging sessions and monitoring energy usage. According to Tom Moloughney of State Of Charge, the app allows users to set Time-of-Use (TOU) rates, track energy usage and cost, and manage multiple user accounts. The app also supports scheduled charging, RFID card functionality, and plug-and-charge modes, which provide flexibility for different charging scenarios. Additionally, the app offers OTA remote diagnostics and upgrades, ensuring optimal performance and a longer lifespan. The IYILO app's ability to display real-time temperatures from the NEMA 14-50 plug and SAE J1772 connector adds to its utility for monitoring charging conditions. This feature was particularly appreciated by users who want to ensure their charging setup is operating safely and efficiently.
The app's functionality extends beyond basic monitoring to include data export capabilities and multi-family account support, which makes it suitable for shared charging environments. According to IYILO's official documentation, the app supports multiple charging modes, including scheduled charging, RFID card, and plug-and-charge, while also offering OTA remote diagnostics and upgrades. The integration of these features provides users with a comprehensive solution for managing their home charging needs. The app's ability to track energy usage and cost, along with its support for TOU rate statistics, helps users optimize their charging schedules and reduce electricity costs. The IYILO app's user-friendly design and comprehensive feature set make it a valuable tool for managing home EV charging.
Installation and Compatibility
The IYILO 40-amp NEMA 14-50 charger is designed for easy installation and compatibility with existing NEMA 14-50 outlets. According to IYILO's installation guide, the device can be installed using a standard NEMA 14-50 outlet, which is commonly found in homes with electric ranges and dryers. The charger's compatibility with various electric vehicle models, including Ford Mustang Mach-E, Honda Prologue, Chevy Bolt, Hyundai IONIQ 5/6, Rivian R1T/R1S, Jeep 4XE, VW ID4, and Kia EV6/EV9, makes it a versatile option for different EV owners. The device supports plug-and-charge functionality, which allows for instant charging as soon as the vehicle is connected, eliminating the need for additional setup. The installation process is straightforward, with a complete installation guide included in the package and step-by-step videos or PDF manuals available via the IYILO App. This ease of installation is particularly beneficial for users who want to avoid complex electrical work or hire professional installers.
The charger's compatibility with existing NEMA 14-50 outlets makes it an attractive option for users who want to upgrade their home charging setup without major electrical modifications. The device's ability to deliver up to 38 miles of range per hour at 40A, combined with its plug-and-charge functionality, provides a convenient and efficient charging solution. Additionally, the charger's support for multiple charging modes, including scheduled charging, RFID card, and plug-and-charge, enhances user flexibility. The IYILO 40-amp NEMA 14-50's compatibility with a wide range of EV models and its ease of installation make it a practical choice for many homeowners.
Build Quality and Design
The IYILO 40-amp NEMA 14-50 charger features a robust build quality with a NEMA 4 waterproof rating, ensuring durability in various weather conditions. According to IYILO's specifications, the device is designed for easy setup and installation, with a complete installation guide included in the package and step-by-step videos or PDF manuals available via the IYILO App. The device is UL compliant and has passed UL991, UL1998, UL2231, and UL2594 tests, along with ETL and Energy Star certifications. The built-in CCID 20 leakage protection, ultra-flex cable, and NEMA 4 waterproof rating contribute to its overall safety and reliability. The device's design emphasizes both functionality and user safety, with a focus on preventing electrical hazards.
The charger's design includes an integrated connector holster that is easy to use, according to Tom Moloughney of State Of Charge, who gave it a 3/5 rating for ease of use. The charging cable is described as very thin and flexible, with a standard length of 25 ft (7.5 m), and was praised by Tom as one of the best on the market. The device's ability to integrate seamlessly with existing NEMA 14-50 outlets while providing advanced safety features makes it a practical choice for homeowners. The inclusion of a 25 ft charging cable and the device's compact design contribute to its overall appeal for users who want a reliable and convenient charging solution.
Where It Falls Short
Despite its many strengths, the IYILO 40-amp NEMA 14-50 charger has some limitations that potential buyers should consider. One significant concern is the lack of a Wi-Fi option for the energy meter, which is required for advanced Dynamic Load Balancing features. According to IYILO's documentation, the energy meter requires a hardwired connection to the charging station, which may be inconvenient for users who prefer wireless connectivity. Additionally, the device's performance in extreme weather conditions, particularly at the lower end of its operating temperature range, has not been extensively tested. The automatic resumption of charging after a temperature event, while a safety feature, may be seen as risky by some users who prefer a manual restart to ensure proper inspection of the electrical connection. These limitations, while not deal-breakers, are important considerations for users who prioritize specific features or operating conditions.
Another potential drawback is the device's compatibility with Tesla vehicles, which require a SAE J1772 adapter. While the IYILO 40-amp NEMA 14-50 is compatible with most EVs in North America, Tesla owners will need an additional adapter to use the device. This limitation, while not unique to IYILO, is worth noting for users who own Tesla vehicles. Additionally, the device's price point, while competitive, may not be the most affordable option for budget-conscious consumers. The IYILO 40-amp NEMA 14-50's advanced features and safety systems justify its cost for many users, but those seeking a more basic charging solution may find other options more economical. The device's reliance on a NEMA 14-50 outlet also means that users with older or incompatible outlets may need to upgrade their electrical infrastructure before installation.
Who It's Best For
The IYILO 40-amp NEMA 14-50 charger is best suited for homeowners who own electric vehicles and want a reliable, fast, and smart charging solution. It is particularly ideal for users who already have a NEMA 14-50 outlet installed in their home, as it can be easily plugged in without requiring major electrical modifications. The device is well-suited for users who value safety features, such as the integrated temperature monitoring system, and want to take advantage of smart charging capabilities through the IYILO app. The charger's compatibility with a wide range of EV models, including Ford Mustang Mach-E, Honda Prologue, Chevy Bolt, Hyundai IONIQ 5/6, Rivian R1T/R1S, Jeep 4XE, VW ID4, and Kia EV6/EV9, makes it a versatile option for different EV owners. Users who want to maximize their charging efficiency and minimize electricity costs will find the IYILO 40-amp NEMA 14-50 particularly appealing due to its support for Time-of-Use (TOU) rates and energy tracking features.
This charger is especially beneficial for households with multiple EVs, as it supports power sharing between two units, allowing for dynamic allocation of available power without exceeding the total limit. The device's ability to integrate with the IYILO Energy Meter for advanced Dynamic Load Balancing makes it an attractive option for homes with limited electrical capacity or those looking to avoid costly panel upgrades. Users who prioritize safety and want a device that can monitor and respond to temperature changes in real-time will find the IYILO 40-amp NEMA 14-50 to be a strong choice. Additionally, the device's plug-and-charge functionality and ease of installation make it accessible to users who may not be comfortable with complex electrical work.
How It Compares to Alternatives
When compared to other home EV charging stations, the IYILO 40-amp NEMA 14-50 stands out for its advanced safety features, particularly the integrated temperature monitoring system in both the NEMA 14-50 plug and SAE J1772 connector. While many competitors offer similar charging speeds and power outputs, the IYILO's temperature monitoring system provides a unique safety advantage that is not commonly found in other models. The device's support for multiple charging modes, including scheduled charging, RFID card, and plug-and-charge, along with its comprehensive app features, makes it a more versatile option than many alternatives. The IYILO 40-amp NEMA 14-50's ability to integrate with the IYILO Energy Meter for advanced Dynamic Load Balancing is also a significant advantage over other chargers that lack this capability. This feature allows users to dynamically adjust charging rates based on real-time household consumption, optimizing speeds during utility off-peak hours and preventing circuit overloads.
In contrast to some competing models, the IYILO 40-amp NEMA 14-50 offers a balance of performance, safety, and smart features that make it a compelling choice for home EV owners. While other chargers may offer similar charging speeds, the IYILO's emphasis on safety through its integrated temperature monitoring system, combined with its user-friendly app and compatibility with a wide range of EV models, sets it apart. The device's ability to deliver up to 38 miles of range per hour at 40A, along with its plug-and-charge functionality, provides a convenient and efficient charging solution. The IYILO 40-amp NEMA 14-50's competitive pricing, combined with its comprehensive feature set, makes it a strong contender in the home EV charging market.
Strengths
- +Features integrated temperature sensors in both NEMA 14-50 plug and SAE J1772 connector for enhanced safety
- +Offers flexible power configuration with hardware dip switches and app-based adjustment for 16-48 amps
- +Includes a 25 ft (7.5 m) thin and flexible charging cable rated as one of the best on the market
- +Provides power-sharing capability for two EVs on a single circuit with dynamic power allocation
Watch-outs
- −Dynamic Load Balancing requires a separate energy meter that must be hardwired
- −Temperature shutdown feature may resume charging automatically without manual intervention
How it compares
The IYILO 40-amp NEMA 14-50 model differs from the Emporia Pro and Tesla Universal Wall Connector by offering a plug-in solution with integrated temperature sensors and flexible power configuration. While the Emporia Pro provides smart load balancing and the Tesla offers Magic Dock, the IYILO focuses on safety with its temperature monitoring features and includes a thin, flexible cable, though it lacks Wi-Fi connectivity and app support for load balancing.
Who this is for
At a glance: users wanting safe plug-in charging.
Why you’d buy the IYILO 40 amp NEMA 14-50
- Features integrated temperature sensors in both NEMA 14-50 plug and SAE J1772 connector for enhanced safety.
- Offers flexible power configuration with hardware dip switches and app-based adjustment for 16-48 amps.
- Includes a 25 ft (7.5 m) thin and flexible charging cable rated as one of the best on the market.
Why you’d skip it
- Dynamic Load Balancing requires a separate energy meter that must be hardwired.
- Temperature shutdown feature may resume charging automatically without manual intervention.
Rating sources
“The tested IYILO 48-amp hardwired version is an impressive unit with almost all the features one could ask for.”
“This IYILO charger checks nearly every box. It's a safety-first, feature-packed, 48-amp charger that most users will find serves all of their home charging needs.”
“I actually use the hell out of these chargers and get a real feel on uh how robust they are before I published a review.”
“This is a universal one. This has the J1772 plug, so it can charge all electric cars. It's got a really cool app, some really cool safety features.”
Our 4.4 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
