myenergi Zappi GLO vs Sync Energy Wall Charger 2

The Sync Energy Wall Charger 2 is £237 cheaper at £362 compared to the myenergi Zappi GLO at £599. Note: the Sync Energy Wall Charger 2 price is socketed Wi-Fi/LAN; tethered from £302.

When you factor in professional installation (typically £400–£600), the total installed cost for the myenergi Zappi GLO is approximately £999–£1199, while the Sync Energy Wall Charger 2 comes in at around £762–£962. Fully installed, the Sync Energy Wall Charger 2 remains the more affordable option.

The myenergi Zappi GLO (7kW / 22kW) supports three-phase charging at up to 22kW, while the Sync Energy Wall Charger 2 is single-phase only at 7.4kW. On the standard UK single-phase supply (95% of homes), both charge at roughly the same speed. Three-phase is only relevant if your property has a three-phase electrical supply.

On a standard UK single-phase supply, both will charge a Tesla Model 3 Long Range (75kWh battery) from 20% to 80% in approximately 5–6 hours overnight. Even a Tesla Model Y with its larger battery completes a typical daily top-up well within an overnight window. For the vast majority of UK Tesla owners, single-phase 7kW charging is more than sufficient — you'll wake up to a full battery every morning.

The myenergi Zappi GLO offers: Solar diverting (Eco / Eco+ modes), myenergi app, Smart tariff support, RFID access (126 users), myenergi ecosystem (eddi, libbi), Wi-Fi & Bluetooth. The Sync Energy Wall Charger 2 offers: Sync Energy app, TariffSense scheduling, SolarCharge (solar diversion), Dynamic load balancing, OCPP 1.6J, Energy monitoring, OTA updates, Wi-Fi + Ethernet + Bluetooth, Interchangeable fascia plates (9 colours), RFID (on select models), Built-in PEN fault protection.

Breaking these down by category: for connectivity, the myenergi Zappi GLO uses Wi-Fi & Bluetooth, while the Sync Energy Wall Charger 2 uses Wi-Fi + Ethernet + Bluetooth. For energy management, the myenergi Zappi GLO provides basic monitoring, compared to the Sync Energy Wall Charger 2's Sync Energy app, Dynamic load balancing, Energy monitoring. Solar and scheduling features are covered in the dedicated sections below.

Both the myenergi Zappi GLO and Sync Energy Wall Charger 2 support solar integration, allowing you to charge your Tesla using surplus solar energy rather than drawing from the grid. The implementation and sophistication of solar diversion differs between the two, which can significantly affect how much free charging you actually get.

The myenergi Zappi GLO uses a CT clamp on your meter tails to measure real-time surplus generation, enabling its Eco and Eco+ modes for partial or 100% solar charging. The Sync Energy Wall Charger 2 supports solar diversion through its energy management system. The key difference is how precisely each charger tracks surplus generation — CT clamp-based systems typically offer more responsive diversion than those relying on smart meter data, which can have a slight delay.

Both the myenergi Zappi GLO and Sync Energy Wall Charger 2 support smart energy tariffs, enabling automated off-peak charging at significantly reduced rates. This is one of the most impactful ways to cut your EV running costs, potentially saving hundreds of pounds per year compared to charging on a standard tariff.

The myenergi Zappi GLO supports Octopus Intelligent Go (~7p/kWh) and Octopus Go (~8.5p/kWh) through its Intelligent Octopus integration, as well as other time-of-use tariffs. The Sync Energy Wall Charger 2 supports smart tariff scheduling with popular EV tariffs including Octopus Go (~8.5p/kWh) and similar time-of-use plans. The most popular EV tariffs in the UK include Octopus Intelligent Go (~7p/kWh), Octopus Go (~8.5p/kWh), OVO Charge Anytime (~14p/kWh), and British Gas EV Power+ (~7.9p/kWh). Not all chargers work with all tariffs, so check compatibility with your specific provider before buying.

The myenergi Zappi GLO comes with a 3 years warranty, while the Sync Energy Wall Charger 2 offers 3 years. Both offer the same warranty length, so neither has an advantage here. Both are OZEV-approved and suitable for outdoor installation — a longer warranty provides more peace of mind for a product that lives outside year-round and is exposed to British weather.

For weatherproofing, the myenergi Zappi GLO is rated IP65 (fully weatherproof) (jet-proof — protected against water jets from any direction), while the Sync Energy Wall Charger 2 is rated IP65 + IK10 (fully weatherproof, impact-resistant) (jet-proof — protected against water jets from any direction). A higher IP rating means better protection against rain, hose water, and dust. In practical terms, any rating of IP54 or above is suitable for a UK outdoor installation, but a higher rating provides extra confidence in extreme weather — particularly relevant if your charger is exposed rather than sheltered under a car port.