Ohme vs Hypervolt: Tariff Brain or Tougher Box?

The short answer

Which one to pick

Tariff control is what you are buying the Ohme for

Ohme lists the Home Pro as compatible with all energy tariffs and it integrates directly with smart ones, Intelligent Octopus Go included. Tell it when you need the car and it works out the cheapest half-hours itself, every night, without you opening anything. There is a colour LCD and physical buttons on the unit, so a quick override does not mean finding your phone.

Hypervolt has scheduling and app control, but it is not built around tariff integration the way the Ohme is. If your saving comes from being on the right rate at the right hour, that difference is the whole decision. Our EV tariff comparison covers what those rates are worth.

Worth checking before you order: the Ohme runs on a 4G multi-net SIM rather than your home Wi-Fi. If your router barely reaches the drive, that is a point in its favour. The Hypervolt is Wi-Fi and Bluetooth only.

Build, cable and solar

The Hypervolt is the more serious bit of hardware. IP66 and IK10, an operating range of -25 to 40°C, and cable options at 5m, 7.5m and 10m. The Ohme is IP55 with a 5m tethered cable and an 8m upgrade. Both are fine on a sheltered wall. Somewhere fully exposed, the Hypervolt has more margin.

The Ohme is much smaller though, at 170 x 200 x 100mm and 4kg against the Hypervolt's 328 x 243 x 101mm. On a front wall that is noticeable.

Solar is the other real difference, though it is narrower than it is often made out to be. Hypervolt has Eco, which mixes solar and grid, and Super Eco, which charges on solar alone. Ohme's Solar Boost also follows surplus, reading actual export through a CT clamp rather than simply favouring daylight hours; Ohme documents a Solar Only mode too, with hardware and firmware qualifications worth checking against your unit. The gap is that Super Eco will run on surplus alone and Solar Boost will not. If panels are the main reason you are buying, neither of these is the strongest option: see zappi vs Hypervolt.

Warranty, updates and what happens when it fails

Both ship with three years as standard. Hypervolt sells an optional five-year extension, which is worth pricing if the charger is going somewhere it will take weather.

The more useful difference is how each one gets fixed. Both take over-the-air firmware updates, so most faults get diagnosed remotely before anyone comes out. The Ohme's 4G SIM means that remote link does not depend on your broadband being up, which is a small but real advantage when the thing you are trying to debug is a connectivity problem.

Worth asking whoever quotes you: who handles a warranty claim, the manufacturer or the installer? On a supplier bundle it is usually the supplier, and that is one of the better reasons to take one. Our installer reviews cover aftercare, which is the part nobody thinks about until they need it.

Ohme Home Pro vs Hypervolt Home 3 Pro: full spec comparison

Ohme figures from ohme-ev.com. Hypervolt figures from its Home 3 Pro technical specification. Checked 7 August 2026. Hypervolt does not publish a list price on its own site, so we have not quoted one.

Charging kit worth having on install day

Both units ship tethered or untethered; if you go untethered, the cable below is the first thing you will need.

bokman Type 2 Cable, 7.2kW, 5m

For public chargers and untethered wallboxes. The one most owners forget to order. from £124.99 direct (longer leads to 20m)

Check Price →Alt: EzGoGoUK specialist: EV Cable Shop →

All cables →

GRAFT Type 2 Holder (anti-theft)

Keeps the connector off the floor and the cable coiled by the charger.

Check Price →Alt: Vorsprung

All storage →

Oxford Fabric Wallbox Cover

Cheap insurance for an outdoor wallbox against UK rain and UV fade.

Check Price →Alt: EVify

All covers →

Browse everything in our EV accessories guide.

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What it costs to get one fitted

Installed totals move with your house, not the charger. A short cable run from a modern consumer unit is the cheap end. A long run, a board upgrade, or a trench across a driveway is not.

Ask any quote to itemise four things: the cable run in metres, whether the consumer unit needs a new way or a full board change, whether an earth rod is required on your supply, and whether the price includes making good after any drilling. Those four are where quotes for the same charger end up hundreds of pounds apart.

The OZEV grant is worth up to £500 and runs until 31 March 2027, but it now only covers flat owners, renters with private off-street parking, and households fitting a cross-pavement solution. If you own a house with a driveway, you no longer qualify, and that catches a lot of people out. Our EV charger cost guide breaks down the variables and the grant checker tells you if you qualify.

Buying direct or through your energy supplier

You have two routes. Buy the box from the manufacturer and find your own installer, or take a bundled deal from an energy supplier where the hardware, the fitting and often a matching tariff come as one price.

Direct usually costs less on paper and gives you the full model range. Supplier bundles are simpler, come with one company to chase if something goes wrong, and are frequently tied to a cheap overnight EV rate that is worth more over three years than the difference in the install price.

Worth comparing before you commit: Octopus Energy, OVO, which sells the zappi and the Hypervolt among others, British Gas, which fits the Hive charger and offers interest-free finance, and EDF. Our installer reviews cover lead times and aftercare, which matter more than most people expect.

Common questions