Humax MX7 Review
Key Features at a Glance
- 7kW single-phase — adds approximately 25 to 28 miles of range per hour
- V2G-ready via ISO 15118 PLC module — one of only two certified AC home chargers in the UK
- RFID access control — two tags included, prevents unauthorised charging
- 2025 London Design Awards Gold — independently recognised design quality
- Three cable configurations — untethered (socket), tethered 5m, or tethered 7m
- OTA firmware updates — charger improves automatically over its lifetime
- Dynamic load balancing — static and dynamic load management built in
- 5-year warranty — above the industry norm of 3 years
- OZEV eligible — up to £500 off installation for eligible renters and flat owners
Is It Worth It?
The Humax MX7 packs more features per pound than almost anything else in its price bracket. V2G-ready certification, RFID access control with two tags, interchangeable fascia plates, a London Design Award, a five-year warranty, solar integration, and OTA firmware updates — at £649.
The Humax MX7 makes most sense for buyers who want a well-engineered, future-proofed home charger with practical access control, and who understand that V2G — though certified — is not yet active in the UK.
The Humax name carries less weight in the EV charging market than it does in consumer electronics. For buyers who evaluate on engineering and feature depth, the MX7’s specification speaks clearly.
Charging Performance
Power Output and Cable Options
The MX7 charges at 7kW single-phase, adding approximately 25 to 28 miles of range per hour — sufficient for a full overnight charge on most modern EVs. There is no three-phase option.
Three cable configurations are available. The 7m tethered version adds useful reach for awkward parking positions or cars with rear charge ports parked at an angle. The untethered socket version gives flexibility to use different cable lengths or accommodate different vehicles.
Design and Build
The MX7 won the 2025 London Design Awards Gold for its design quality. The WhichEV reviewer noted that the Humax MX7 “won’t look out of place on any wall.” The hinged faceplate provides easy access during installation and maintenance — a practical improvement over units that require housing removal.
Interchangeable fascia plates are included, with black supplied in the box.
Two RFID tags are included. These allow the charger to restrict use to known tags, preventing unauthorised charging — particularly useful on shared driveways or properties accessible from the street. The integrated PLC module and ISO 15118 protocol enable smart vehicle recognition and secure user authentication.
Load Balancing
Both static load management and dynamic load balancing are built in. The charger monitors your household’s total electricity demand and adjusts charging speed to prevent drawing more than your supply can support — useful for older properties or those with a lower supply rating.
Installation Note: Cat 6 Ethernet Requirement
Full solar integration and load balancing features require a Cat 6 Ethernet cable to be run alongside the power cable during installation. This was not required for previous-generation chargers and may add complexity and cost to installations where existing cabling was run without it.
Confirm this requirement with your installer before booking. If your property already has data cabling to the install location, this is not an issue.
Smart Features and App
Humax Smart App
The Humax Smart App provides scheduling, remote monitoring, live status updates, and energy usage tracking. You can set charging times to align with your tariff’s off-peak window, check live session data, and receive notifications on charge progress. OTA firmware updates mean the app’s functionality can improve over time without requiring any action — the charger updates itself automatically.
Confirm current smart tariff integrations — including whether Octopus Intelligent Go is supported — directly with Humax before purchasing, as specific API partnerships were not confirmed in research for this review.
V2G, Solar and Future-Proofing
What V2G-Ready Means for the MX7
The MX7 includes an integrated Power Line Communication (PLC) module and the ISO 15118 communication protocol — the hardware and software standard required for vehicle-to-grid (V2G) energy flow. In a working V2G system, your EV’s battery would export electricity back to your home or the national grid during peak demand periods.
The MX7 is one of only two AC home chargers in the UK with this certified V2G readiness, alongside the Zaptec Go 2.
The Honest V2G Caveat
As of April 2026, V2G over AC is not active in the UK. Humax’s own documentation notes that V2G “will depend on future certification and compatible vehicles in the UK” and that “selling power back to the grid may require a software subscription.” Compatible vehicles are scarce, V2G tariffs from energy suppliers are not widely available, and DNO approval (the G99 export licence) can take up to 12 weeks.
The value of the V2G hardware today is that you will not need to replace the charger when V2G does become available.
Solar Integration
The MX7 supports solar charging, directing surplus PV generation to your EV. Full solar integration requires a Cat 6 Ethernet cable at the install location. Confirm this with your installer before booking. OTA firmware updates mean that solar functionality can be enhanced over time as Humax develops the software platform.
How It Compares
Humax MX7 vs Zaptec Go 2
Both are V2G-ready home chargers at a similar price range. The Zaptec Go 2 adds subscription-free 4G built in and a MID-approved energy meter — a meaningful advantage for buyers making business mileage claims or working in Wi-Fi dead zones. The Humax MX7 adds RFID access control (with two tags included), interchangeable fascia plates, a London Design Award, and availability in tethered as well as untethered configurations.
If MID metering or 4G connectivity are the priority, the Zaptec has the edge. If RFID access, design recognition, and tethered cable convenience matter more, the Humax is the stronger buy.
Humax MX7 vs Ohme Home Pro
The Ohme Home Pro is the right choice if automated smart tariff savings are your main goal. The Humax wins on V2G readiness, RFID access control, warranty duration (5 years vs 2 years), and the OTA update architecture.
Frequently Asked Questions
What is the Humax MX7 EV charger? A 7kW home EV charger from Humax, a consumer electronics manufacturer with over 35 years of experience. It launched in the UK in June 2025, is V2G-ready via ISO 15118, includes RFID access control, and won the 2025 London Design Awards Gold. Available in untethered, 5m tethered, and 7m tethered versions from £649.
Is the Humax MX7 OZEV approved? Yes. All MX7 models are OZEV approved. Eligible renters and flat owners can claim up to £500 off the installation cost through the OZEV grant, which runs until March 2027.
Does the Humax MX7 support solar charging? Yes. Full solar integration requires a Cat 6 Ethernet cable at the install location alongside the power cable. Confirm this requirement with your installer before booking.
What is the warranty on the Humax MX7? 5 years — above the industry norm of 3 years. Confirm the full terms from the Humax website before purchasing.
Is the Humax MX7 V2G compatible? The MX7 includes the hardware required for vehicle-to-grid energy transfer. However, V2G is not yet active in the UK. Activation depends on future software development, compatible vehicles, and local grid infrastructure. A software subscription may be required when V2G becomes available.
Can I track usage for multiple users? Yes. The app allows itemised usage tracking via RFID tag, making it easy to monitor and bill multiple users individually — useful for shared driveways.
