Hypervolt Home 3 Pro vs CTEK Chargestorm Connected 3

A domestic all-rounder versus a commercial-grade outlier

These two chargers have almost nothing in common beyond a Type 2 plug. The Hypervolt Home 3 Pro at £625 is a tethered, single-phase smart charger built for a typical UK driveway. The CTEK Chargestorm Connected 3 at £1,086 is an untethered, three-phase unit engineered more like something you'd bolt to a car-park pillar. The £461 gap between them is not a premium for polish — it is the price of a fundamentally different class of hardware.

• Hypervolt Home 3 Pro — £625, single-phase 7.4 kW, smart tariff scheduling, solar CT clamp included, IP66 + IK10, 3-year warranty (extendable to 5).
• CTEK Chargestorm Connected 3 — £1,086, up to 22 kW on three-phase, OCPP 1.6-J and 2.0.1, MID-approved meter, built-in Type B RCD, 5-year warranty. No first-party tariff integration.

Why single-phase households should not buy the CTEK

Roughly 95% of UK homes run on a single-phase supply. Wire the CTEK to one, and it delivers the same 7.4 kW the Hypervolt does — except you have paid £461 more for it, lost smart tariff control, and gained a 24 kg unit with a 4-metre fixed tail instead of a 5-to-10-metre tethered cable. The CTEK's MID-approved meter and OCPP stack are fine things, but they solve problems a homeowner on Octopus Go or Intelligent Go does not have.

The Hypervolt's app handles tariff scheduling directly. Set a charge window for 00:30–05:30 and forget about it. The CTEK has no first-party app for that — you route scheduling through Monta or another OCPP back-end. For someone who simply wants cheap overnight kWh into a Tesla, that is an unnecessary complication at a higher price.

When the CTEK earns its £1,086

Three-phase supply. That is the dividing line. If you already have three phases — or you are upgrading for a heat pump, workshop, or fast-charging need — the CTEK delivers 22 kW at 32 A. That roughly triples single-phase speed: a 75 kWh Model Y battery from 10% to 80% in around two and a half hours rather than seven. The built-in MRCD Type B means your installer does not need to source and fit a separate DC-fault device, saving £100–£200 on the board. The MID-approved energy meter matters if you are claiming business mileage or need auditable records.

OCPP 2.0.1 and ISO 15118 readiness also mean the CTEK is not locked to a single vendor's ecosystem. If your energy setup evolves — different back-end, different supplier, fleet management — the charger follows. The Zaptec Go 2 at £638 is the obvious three-phase alternative with a lower entry price, and it is worth comparing the two directly via our Zaptec Go 2 vs CTEK comparison.

Install cost widens the gap further

The Hypervolt typically installs for £400–£600. The CTEK's quoted range is £900–£1,300, and higher still if a new sub-main or three-phase supply upgrade is involved. Add unit and install together: the Hypervolt lands at roughly £1,025–£1,225 all-in; the CTEK at £1,986–£2,386. Both are OZEV-approved, so eligible renters and flat owners can knock £500 off — but even after the grant, the total cost gap can exceed £900.

That is a lot of off-peak kWh. At 8.5p on Octopus Go, £900 buys you over 10,500 kWh — enough to drive roughly 35,000 miles.

The Hypervolt's quiet strengths

IP66 plus IK10 is the best combined weather and impact rating in the domestic market. The 10-metre tethered cable option (at extra cost over the base 5-metre) reaches garages and driveways that most 5-metre tethered rivals cannot. UK phone support that answers promptly is an underrated feature when your charger decides to sulk at 11 pm on a Sunday. The solar CT clamp comes included — not as capable as the Zappi GLO's surplus-diversion modes, but adequate for topping up from panels without an extra purchase. If solar is the priority, the Zappi GLO vs Hypervolt comparison covers that in detail.

Which to buy

Buy the Hypervolt Home 3 Pro if:

• You have a single-phase supply — which is almost certainly the case.
• You want smart tariff scheduling in the charger's own app, no third-party platform required.
• You value IP66 weatherproofing, a long cable option, and UK-based support.

Buy the CTEK Chargestorm Connected 3 if:

• You have or are installing a three-phase supply and want 22 kW charging at home.
• You need OCPP compliance, MID-approved metering, or built-in Type B RCD protection.
• You are comfortable managing schedules through Monta or a similar OCPP platform rather than a first-party app.

For the vast majority of UK Tesla owners on a standard single-phase connection, the Hypervolt is the better charger — and it is £461 cheaper. The CTEK is a serious piece of hardware aimed at a narrow, specific audience. If you are in that audience, you already know. If you are not sure, you are not.