The EO Mini Pro 3 is one of the most compact mainstream smart home chargers available in the UK, roughly the size of an A5 notepad. It comes in a 7.2 kW single-phase or 22 kW three-phase configuration, is designed and made in the UK, and packs Wi-Fi, Bluetooth, and Ethernet connectivity as standard. What it lacks compared with direct competitors is a dedicated solar divert mode and a warranty to match.
Design and size
The EO Mini Pro 3’s defining characteristic is its footprint. According to EO Charging and independent reviews, the unit measures approximately 230 x 151 x 125 mm, which puts it in a similar class to a hardback A5 notebook. It weighs around 3 kg without cable.
Note: the 230 x 151 x 125 mm figure is the manufacturer-adjacent specification used in this article. An alternative figure of 215 x 140 x 100 mm appears in some retailer listings. This discrepancy should be verified against EO Charging’s current datasheet before publication.
The unit has a clean, minimal aesthetic with a small status indicator. It is designed to sit flat on the wall without the bulk of larger competing chargers. In tight installation spaces, such as narrow garages, small driveways, or restricted wall areas, the smaller footprint is a genuine practical advantage.
It is available in two colour options and the design has remained consistent through the product generation.
Specifications
| Specification | Detail |
|---|---|
| Power output | 7.2 kW (single-phase) / 22 kW (three-phase) |
| Connector | Type 2 socket (untethered) or tethered (5 m, 7.5 m, 10 m) |
| Weather resistance | IP54 (socket version) / IP56 (tethered version) |
| Operating temperature | -25°C to +70°C |
| Connectivity | Wi-Fi, Bluetooth, Ethernet (standard); 4G (optional) |
| Protocol | OCPP 1.6 |
| Warranty | 36 months (3 years) |
| Origin | Designed and manufactured in the UK |
The 22 kW three-phase option is a separate product variant, not a software upgrade to the standard unit. You need to specify three-phase at the time of purchase. On a standard UK single-phase supply, the 7.2 kW single-phase version is the correct choice.
The OCPP 1.6 compliance is notable. It means the EO Mini Pro 3 can be managed by third-party energy management platforms and back-office systems, which is more relevant for business and fleet use but adds flexibility for home users on advanced energy management setups.
Smart features and app
The EO app provides scheduling, session monitoring, and energy usage reporting. You can set charging times to align with off-peak tariff windows, check how much energy has been delivered over a session, and review historical usage.
EO has a partnership with Hive for energy-aware scheduling, which allows the Hive system to optimise charging around household energy use and tariff data where the two systems are connected.
The EO Mini Pro 3 is compatible with common UK smart tariffs via app-based scheduling. This covers Octopus Go, Economy 7, and similar fixed off-peak structures. It does not have a dedicated API integration with Octopus Intelligent Go in the same way the Ohme Home Pro does; for Intelligent Go’s automatic variable-rate scheduling, Ohme remains the specialist choice.
Charging performance
In independent testing, the EO Mini Pro 3 delivers its full 7.2 kW output consistently. For a typical EV with a 40 kWh battery, a full charge from near-empty takes approximately six hours at 7.2 kW. On the standard estimate of roughly 4 miles per kWh, that translates to around 25 to 28 miles of range added per hour.
For context on how charging speed relates to your car’s onboard charger and home supply, see our home EV charging speed guide.
The 22 kW three-phase variant delivers its full output on a three-phase supply to compatible EVs. Most popular UK EVs cap at 11 kW on three-phase, so a three-phase EO Mini Pro 3 paired with a Tesla Model Y, for example, would deliver 11 kW rather than 22 kW.
Price and OZEV grant position
EO Mini Pro 3 pricing sits in the mid-market, broadly between the budget end (Evec, Rolec) and premium options (Andersen A2). Confirm current retailer pricing at the time of purchase; mid-market pricing in the UK charger sector moves regularly.
For a sense of how the EO compares with cheaper options, see our cheapest home EV chargers guide.
The EO Mini Pro 3 qualifies for the OZEV chargepoint grant when installed by an OZEV-approved installer. From 1 April 2026, the grant is £500 per socket for renters and flat owners who meet the eligibility criteria.
Warranty and durability
The EO Mini Pro 3 carries a 36-month (3-year) manufacturer warranty. This is the main area where it falls behind key competitors:
- Andersen A2: 7 years
- Wallbox Pulsar Max: 5 years
- Rolec EVO: 5 years
- EO Mini Pro 3: 3 years
Three years is adequate but shorter than the market standard among mid-market and premium competitors. If long-term warranty peace of mind is important to you, this is the factor to weigh against the compact size.
EO Charging is a UK company that designs and manufactures its products domestically, which is a differentiator from most competitors sourcing hardware from overseas manufacturers.
Pros and cons
Pros
- Smallest mainstream footprint in the UK market
- Wi-Fi, Bluetooth, and Ethernet all standard (4G optional)
- 22 kW three-phase variant available
- UK designed and manufactured
- IP56 on tethered version: good weather resistance
- OCPP 1.6 compliant
Cons
- 3-year warranty is shorter than Wallbox (5 yr), Rolec (5 yr), and Andersen (7 yr)
- No dedicated solar divert mode; solar-first buyers should consider Zappi or Hypervolt
- App does not have native Octopus Intelligent Go integration
EO Mini Pro 3 vs rivals
| Charger | Warranty | Solar divert | IP rating | Connectivity | Notes |
|---|---|---|---|---|---|
| EO Mini Pro 3 | 3 years | No | IP54/IP56 | Wi-Fi, BT, Ethernet | Smallest footprint |
| Ohme Home Pro | 3 years | Via scheduling | IP54 | Wi-Fi, BT | Best Octopus integration |
| Wallbox Pulsar Max | 5 years | No | IP55 | Wi-Fi, BT | Compact, IK10 tough |
| Rolec EVO | 5 years | Yes | IP65 | Wi-Fi | Solar divert standard |
| Andersen A2 | 7 years | Yes | IP54 | Wi-Fi, BT | Hidden cable, premium |
The EO Mini Pro 3 is the clear winner on physical size. For buyers with genuinely constrained installation space, that makes it the obvious choice. For buyers who value warranty length, solar divert, or deep smart tariff integration, competing chargers are stronger.
Verdict: who the EO Mini Pro 3 is for
Best for:
- Small driveways, narrow garages, or walls with very limited mounting space
- Buyers who value a minimal, understated aesthetic
- Multi-connectivity users who need Ethernet or optional 4G
- OCPP-compatible setups where open-protocol management is needed
Less ideal for:
- Solar-panel households wanting automatic surplus divert
- Buyers for whom warranty length is the primary consideration
- Octopus Intelligent Go users who want automatic variable-rate charging management
Compare every home EV charger we review for a full side-by-side picture across the market.
Key Takeaways
- EO Mini Pro 3 is one of the smallest mainstream smart home chargers in the UK
- Available in 7.2 kW single-phase or 22 kW three-phase
- Wi-Fi, Bluetooth, and Ethernet standard; 4G optional; OCPP 1.6 compliant
- Qualifies for OZEV grant via OZEV-approved installers; from 1 April 2026, renters and flat owners only
- 3-year warranty is shorter than Wallbox (5 yr), Rolec (5 yr), and Andersen (7 yr)
Frequently Asked Questions
How big is the EO Mini Pro 3?
Approximately A5 notepad size. The manufacturer-adjacent specification from EO Charging and independent reviewers is 230 x 151 x 125 mm. Note that some retailer listings cite 215 x 140 x 100 mm; verify against EO Charging’s current datasheet before purchasing.
Does the EO Mini Pro 3 work with solar panels?
It does not have a dedicated solar divert mode. For solar-first households wanting automatic surplus divert, the myenergi Zappi or Hypervolt Home 3 Pro are the better options. You can schedule the EO Mini Pro 3 to charge at times when solar generation is highest, but this is manual scheduling rather than real-time surplus tracking.
Can the EO Mini Pro 3 charge at 22 kW?
Yes, with the dedicated 22 kW three-phase variant, provided you have a three-phase electricity supply and a compatible EV. On a standard UK single-phase supply, only the 7.2 kW single-phase version is relevant.
Does the EO Mini Pro 3 qualify for the OZEV grant?
Yes, when installed by an OZEV-approved installer. From 1 April 2026, the £500 per socket grant applies to renters and flat owners only; homeowners are no longer eligible.
Is the EO Mini Pro 3 weatherproof?
Yes. IP54 on the socket (untethered) version; IP56 on the tethered version. Both ratings indicate solid protection against water ingress and are suitable for outdoor wall mounting.
Useful Resources
EO Charging — EO Mini Pro 3 home page https://www.eocharging.com/home-charging
EO Charging — Claiming the OZEV Grant https://www.eocharging.com/stories/claiming-the-ozev-grant
T3 — EO Mini Pro 3 Smart EV Charger review https://www.t3.com/reviews/eo-mini-pro-3-smart-ev-charger