Zaptec Go 2 vs Sync Energy Wall Charger 2

£238 and a question of timing

The Zaptec Go 2 costs £638. The Sync Energy Wall Charger 2 costs £400. That £238 gap is not small — it is roughly the price of a professional install's labour component. What it buys is a single headline feature: V2G readiness. Everything else the Zaptec offers at a premium, the Sync Energy either matches or betters at a lower price.

• Zaptec Go 2 — £638, untethered, V2G-certified, three-phase capable up to 22kW, five-year warranty, subscription-free 4G.
• Sync Energy Wall Charger 2 — £400, available tethered with a 7.5-metre cable, solar diversion included, built-in PEN fault protection, IP65 + IK10.

What V2G readiness costs — and whether it pays

The Zaptec Go 2 is the only AC home charger in the UK certified V2G-ready. That matters — in theory. V2G allows your car battery to export power back to the grid or your home, potentially earning money or offsetting peak-rate consumption. The problem is that the UK's V2G ecosystem remains thin. Protocols are not standardised, few cars support bidirectional AC charging, and no domestic energy supplier yet offers a mainstream V2G tariff that would let you profit from the capability.

The Zaptec's MID-approved energy meter and free 4G connectivity are useful regardless of V2G — the meter gives legally certified readings for workplace reimbursement claims, and the 4G means the charger stays online even if your home Wi-Fi wobbles. Those are genuine, present-day advantages. But they do not, on their own, justify £238 over a charger that already includes solar diversion, dynamic load balancing, and a longer cable.

If V2G arrives within the Go 2's five-year warranty window, early adopters will look prescient. If it does not, they will have paid £238 for a feature that never switched on. Buyers who want to explore bidirectional charging more seriously — with DC rather than AC — might look at the Wallbox Quasar 2, though at £6,100 that is a different conversation entirely. For a more affordable V2G angle, the Indra Smart PRO at £395 is worth a direct comparison with the Zaptec.

The Sync Energy's quiet advantage on daily use

On a single-phase supply — which is what the vast majority of UK homes have — both chargers deliver 7.4kW. Same charge speed, same overnight top-up. The Zaptec's three-phase capability (up to 22kW) is irrelevant unless you have or plan to install a three-phase supply, which fewer than 5% of UK homes do.

The Sync Energy earns its keep in specifics. Its 7.5-metre tethered cable is the longest of any charger on this site — longer than the Tesla Wall Connector's 7.3 m. Built-in PEN fault protection typically removes the need for a separate earth rod, which can save £100–£200 on installation. Its IP65 + IK10 rating is a step above the Zaptec's IP54 — fully dustproof, jet-wash resistant, and impact-hardened. The interchangeable fascia plates in nine colours are a small thing, but they exist.

Solar diversion via CT clamp is included in the Sync Energy's price. The Zaptec has no equivalent. If you have or are planning solar panels, the Sync Energy diverts surplus generation into your car without needing a separate device. For buyers whose solar setup is more complex — or who want finer-grained control — the myenergi Zappi GLO at £599 remains the specialist choice.

Tariff smarts: neither is an Ohme

Both chargers support scheduled charging, which is sufficient for fixed-window tariffs like Octopus Go (8.5p/kWh, 00:30–05:30) or EDF GoElectric (6.99p/kWh, 23:00–06:00). Set a timer, charge in the cheap window, move on.

Neither charger can chase Octopus Agile's half-hourly price slots automatically. The Sync Energy's TariffSense is schedule-based; the Zaptec's app handles basic scheduling but nothing more. If Agile optimisation is what you need, the Ohme Home Pro at £539 is the charger built for that job — £99 less than the Zaptec and £139 more than the Sync Energy.

The Sync Energy does support Intelligent Octopus Go, which provides smart-slot optimisation at 8p/kWh through the supplier's API rather than the charger's own logic. That is a meaningful point in its favour for buyers on that tariff.

Which to buy

Buy the Zaptec Go 2 if:

• You want the only AC home charger in the UK certified V2G-ready and are prepared to wait for the ecosystem to mature.
• You have or are installing a three-phase supply and want 22kW charging at home.
• You need a MID-approved meter for workplace or fleet reimbursement.

Buy the Sync Energy Wall Charger 2 if:

• You want a smart charger with solar diversion, a 7.5-metre cable, and built-in PEN protection for £400.
• You charge on a single-phase supply — which is most of us — and see no reason to pay £238 for features that do not yet function.
• You are OZEV-eligible: the £500 grant covers the Sync Energy's unit price outright and chips into the install.

For the majority of UK homes, the Sync Energy Wall Charger 2 is the better buy. It does more today, costs less, and builds tougher. The Zaptec Go 2 is a considered bet on a technology that has not arrived yet — and £238 is a lot to wager on a timeline nobody can confirm.