myenergi Zappi GLO vs EO Mini Pro 3

A solar computer versus a charger that disappears

These two sit £76 apart — the myenergi Zappi GLO at £599, the EO Mini Pro 3 at £523 — but they are built for different problems. The Zappi GLO exists to turn roof-generated electricity into miles. The EO Mini Pro 3 exists to mount on a wall where no other charger physically fits. If your situation matches one of those descriptions, the decision is already made. If it matches neither, both chargers are harder to recommend than cheaper, more versatile alternatives.

• myenergi Zappi GLO — £599. Solar diversion in three modes, 6.5-metre cable, IP65, fits into the myenergi ecosystem alongside eddi and libbi. Overkill without panels.
• EO Mini Pro 3 — £523. 215 × 140 × 100 mm, 2.5 kg, Ethernet port, CT clamp included. Scheduling through ev.energy. A charger defined by where it can go, not what it can do.

When the Zappi GLO earns its £76 premium

The Zappi GLO's reason for existing is Eco+ mode: it charges the car using only surplus solar generation, trickling current up or down as cloud cover shifts. No grid import, no cost. The two lesser modes — Eco (tops up from the grid if solar falls short) and Fast (full power, solar ignored) — give flexibility, but Eco+ is the one that changes the economics of ownership. A 4 kW array on a south-facing roof, paired with a car that sits on the drive during the day, can offset a meaningful share of annual charging costs.

The EO Mini Pro 3 includes a CT clamp for solar awareness, but its diversion is rudimentary by comparison. It can see surplus; it cannot chase it with the granularity the Zappi manages. If you have solar panels — or plan to install them within the life of this charger — the Zappi is the obvious pick. If you also run a myenergi eddi for hot-water diversion or a libbi home battery, the ecosystem integration tightens the case further.

Without panels, none of this applies. You are paying £599 for a solar computer with no sun to read. Buyers without solar who want smart tariff scheduling are better served by the Ohme Home Pro at £539, which negotiates half-hourly slots on Octopus Agile and Intelligent Go — something neither the Zappi nor the EO can do. Our solar charger guide covers the full field.

The EO's one structural advantage — and what it costs you

At 215 × 140 × 100 mm, the EO Mini Pro 3 is roughly the size of a paperback novel. The Zappi GLO is 439 × 282 × 130 mm — more than twice as wide, twice as tall, and noticeably heavier at 5.4 kg versus 2.5 kg. In a narrow garage, beside a doorframe, or on a pillar between two parking spaces, the EO fits where the Zappi simply does not. That is a real constraint, not a marketing differentiator.

The EO also has an Ethernet port — unusual at this price — which provides a wired fallback if Wi-Fi is unreliable in an outbuilding or detached garage. Optional 4G covers the remaining edge cases. The Zappi GLO relies on Wi-Fi and Bluetooth only.

What the EO costs you for that compactness: a shorter 5-metre cable (versus 6.5 metres), a lower IP54 rating (versus IP65), and 7.2 kW output rather than the standard 7.4 kW. The speed difference is negligible — perhaps ten minutes over a full battery — but the weatherproofing gap matters if the unit is fully exposed. The app situation also bears mentioning: EO is retiring its own software and migrating users to ev.energy. The platform you buy into is not the one on the box.

If size is not your constraint, the Wallbox Pulsar Max at £513 is also compact and offers 7.4 kW with a three-phase option — worth a look via the Wallbox vs EO comparison.

British Gas buyers get a different calculation

The EO Mini Pro 3 has a Hive Power+ variant that credits back 25% of charging costs on the British Gas EV Power tariff. That is a structural discount no other charger replicates. If British Gas is your supplier and you intend to stay, the cashback narrows the effective cost of charging below what most off-peak tariffs achieve. It is locked to the British Gas ecosystem, though — switch supplier and the benefit vanishes.

The Zappi GLO has no equivalent supplier tie-in. On Octopus Go or EDF GoElectric, both chargers schedule to the off-peak window competently enough. Neither optimises half-hourly pricing the way an Ohme does.

The verdict

Buy the myenergi Zappi GLO if:

• You have solar panels and want genuine surplus diversion — Eco+ is the feature
• You already own or plan to buy other myenergi hardware (eddi, libbi)
• Your property supports three-phase and you want 22 kW charging

Buy the EO Mini Pro 3 if:

• Wall space is the binding constraint — nothing else this capable is this small
• You need Ethernet for a location where Wi-Fi is unreliable
• You are on British Gas and the Hive Power+ 25% cashback applies to you

For most buyers without solar and without a space problem, neither charger is the strongest option at its price. The Tesla Wall Connector at £475 does more for less, and the Ohme Home Pro at £539 is the smarter tariff scheduler. But if you have panels on the roof, the Zappi GLO is the charger to put on the wall. That has not changed — and at £599, it is still the cheapest way to charge a car from sunlight.