Andersen A3 vs Wallbox Quasar 2: Design wallbox or bidirectional gamble?

A £5,105 gap — and the question it actually asks

This is not a like-for-like comparison. The Andersen A3 at £995 is a premium AC wallbox — the most handsome one on the UK market, but still fundamentally a device that pushes 7.4 kW into your car. The Wallbox Quasar 2 at £6,100 is a bidirectional DC unit that can push 12.8 kW *out* of your car and back into your house or the grid. The £5,105 between them is not a premium for better charging. It is the price of admission to an entirely different category of product — one that, in the UK at least, is still more promise than infrastructure.

• Andersen A3 — a 7.4 kW charger you can buy, install, and use this week. 247 finishes, hidden cable, seven-year warranty. It charges your car. That is all it does, and it does it well.
• Wallbox Quasar 2 — a bidirectional DC charger you can pre-register interest in. V2H backup, V2G export, 12.8 kW both ways. It cannot be ordered today, and even when it can, the list of compatible cars is short.

What the Quasar 2 is for — and who it is not for

The Quasar 2's proposition is straightforward on paper. Your EV battery becomes a home battery. Charge at 5p/kWh on Octopus Agile overnight, discharge into the house during the evening peak, sell surplus back to the grid. If V2G tariffs mature and export rates hold, the maths could — *could* — repay the hardware in a few years.

The caveats are heavy. The unit is on pre-registration only; you cannot order one today. Installation requires a DNO G99 application with a 30-to-60-working-day lead time, and the install itself costs £1,500–£3,000 or more — specialist work, not a standard wallbox job. The compatible car list is thin: the Kia EV9 is the headline vehicle, with others expected but not confirmed. Most UK Teslas cannot use bidirectional DC at all. And the warranty is three years, which for a £6,100 unit feels brief. The Andersen A3 offers seven.

If you do not already own a bidirectional-capable car, the Quasar 2 is not a charger purchase — it is a speculative one. For buyers who want V2G readiness without the bidirectional price tag, the Indra Smart PRO at £599 or the Zaptec Go 2 at £500 hold that position as AC chargers with V2G-ready credentials, at a fraction of the cost.

The Andersen A3 on its own terms

Set the Quasar 2 aside and the A3 still has to justify £995 against AC chargers that do the same 7.4 kW job for half the money or less. The Easee One costs £405. The Ohme Home Pro costs £535 and has sharper smart-tariff software. The A3 does not beat them on power, on software, or on price.

What it has is the hidden cable system — the tethered cable retracts entirely inside the unit, leaving nothing dangling on the wall — and 247 colour and finish combinations in anodised aluminium and wood. No other charger on the market looks like this. The seven-year warranty is the longest available. IP54 and Wi-Fi-only connectivity are modest by comparison with tougher, 4G-equipped rivals, but the build quality of the aluminium body is a class above the plastic norm.

The 5.5-metre cable is the constraint. There is no longer option, so the charger must mount close to where the car parks. If your driveway layout demands reach, the A3 cannot accommodate it. For a deeper look at how the A3 stacks up against a more natural rival, the Tesla Wall Connector vs Andersen A3 comparison is more instructive than this one.

Eligible renters and flat owners can claim the £500 OZEV grant against the A3, bringing the unit cost to £495 before installation. The Quasar 2 is not OZEV-approved.

The verdict

Buy the Andersen A3 if:

• You want a charger you can install now, on a single-phase supply, with the best build and aesthetics on the market
• The charger is visible from the street or the front of the house and appearance matters to you
• You value a seven-year warranty and are content with competent — not exceptional — smart features

Buy the Wallbox Quasar 2 if:

• You own or have ordered a bidirectional-capable car (today, that means the Kia EV9 or a handful of others)
• You have a concrete V2G tariff strategy and are prepared for the G99 application process and specialist installation
• You understand that £6,100 plus £1,500–£3,000 installation is a bet on infrastructure that is still arriving

For the overwhelming majority of UK Tesla owners — and most EV drivers full stop — the Quasar 2 is a product to watch, not a product to buy. The Andersen A3 is expensive for what it does electrically, but it exists, it works, and nothing else on a wall looks like it. If you want the charger today, the A3 is the only real option here. If you want bidirectional power *today*, you are probably still waiting — for the Quasar 2, for compatible cars, and for the grid to catch up.