What is a wallbox? Bemis Charger 2, Charger Plus 2 and Charger Pro 2 compared

Short answer: A wallbox is a home AC charging station fixed to a wall or a mounting post and supplied by its own circuit from the distribution board. It charges faster than a household socket (11 or 22 kW on a three-phase supply), is safer thanks to a fixed connection and dedicated protection, and is managed by app and card. Of the three Bemis models, the Charger 2 is the economical choice for a single-user home; the Charger Plus 2 adds dynamic load balancing, OCPP 1.6 and socketed and MID-metered versions; the Charger Pro 2 adds a GSM (4G) module option and is aimed at residential complexes, hotels and workplaces.

This article explains what a wallbox is and how the Bemis models differ. For the general steps of choosing power, wiring and supply capacity, see How to choose a home EV charger.

What is a wallbox and how does it work?

A wallbox is a Mode 3 charger: it communicates with the car through the Type 2 connection, detects the current the car accepts and runs the charge accordingly. It takes its power from a dedicated circuit with its own breaker and residual current protection. Unlike portable chargers plugged into a socket, it is installed once and used in the same place every day. In open car parks and gardens where wall mounting is not possible, it can stand on a pedestal (mounting post).

How it differs from socket charging

• Speed: a household socket gives at most 3.7 kW. On a three-phase supply a wallbox gives 11 or 22 kW; the car's AC acceptance sets the limit.
• Safety: no risk of heating at the plug-to-socket contact; circuit, cable size and protection are chosen for the charging load.
• Convenience: on tethered models the cable is attached, so you just park and plug in.
• Control: RFID card, mobile app, charging scheduled for cheaper hours; on some models load balancing and OCPP.

If you cannot install anything or charge in different places, portable chargers are a sensible alternative: Portable EV charger guide.

11 kW or 22 kW?

Many cars accept at most 11 kW on AC; these cars also charge at 11 kW on a 22 kW wallbox. If your car supports 22 kW and your building's supply is sufficient, 22 kW halves the charging time. Example: a car with a 60 kWh battery takes about 6 hours from empty at 11 kW and about 3 hours at 22 kW. Bemis wallboxes connect to a three-phase supply; for the difference between single- and three-phase see this article.

Tethered or socketed?

• Tethered: a 5-metre Type 2 cable is fixed to the unit. The most practical choice for charging in the same place every day.
• Socketed: the unit has a Type 2 socket and each user plugs in their own cable. Suitable for shared car parks where a cable should not be left out, and for sites used by different cars; you also need a Type 2 charging cable.

What MID meter, OCPP and GSM are for

• MID meter: measures the charged energy with certified accuracy. Needed where consumption must be split per person, such as residential complexes, apartment buildings or workplaces; if you only charge your own car, the version without a meter is enough.
• OCPP 1.6: an open protocol that lets the charger connect to charge management systems and network operators. More in What is OCPP?
• Dynamic load balancing: lowers charging power when other loads in the building rise, so the main breaker does not trip; more chargers fit on the same supply.
• GSM (4G) module: connects the charger to the internet over a mobile line when there is no Wi-Fi in the car park.

Bemis Charger 2, Charger Plus 2 and Charger Pro 2 compared

All three are wall-mounted units with a Type 2 connection and an IP65 housing, connected to a three-phase supply; RFID card reader, LCD display, Wi-Fi, mobile app and scheduled charging are standard on all. The units carry a 2-year manufacturer warranty.

• Charger 2: the entry model of the family. 22 kW (32 A) and 11 kW (16 A) versions; 5-metre tethered Type 2 cable. An optional version with a 5/32A plug lets you plug the unit into a red 5-pin 32 A CEE socket instead of hard-wiring it (handy for tenants and people planning to move). No load balancing, OCPP, socketed or MID-metered version.
• Charger Plus 2: power set in the app in 6, 10, 16 and 32 A steps (about 4, 7, 11 and 22 kW). Dynamic load balancing, OCPP 1.6, automatic restart after a power cut; shared-use software free of charge. Tethered or socketed, each with or without MID meter.
• Charger Pro 2: in addition to the Plus 2's steps, dynamic load balancing and OCPP 1.6, an option with a GSM (4G) module; shared-use software and management panel free of charge. Tethered or socketed; MID meter and GSM module can be chosen separately.

Prices vary by version; current prices are on the product pages.

Which one for whom?

1. One car, one user at home, no need for load balancing: Charger 2. Tenants should look at the plug-in version.
2. Large loads at home (air conditioning, oven, heat pump) with a limited supply, or a small shared car park used by a few people: Charger Plus 2 (with MID meter if consumption is shared).
3. Residential complexes, apartment buildings, hotels, offices or fleet car parks, especially underground car parks without Wi-Fi: Charger Pro 2 (with MID meter for billing, with GSM if needed).

For rules in shared car parks in Turkey, see EV charging station rules for buildings 2026; outside Turkey, local rules apply.

Installation

Installation is not included in the wallbox price. Our survey and installation service is available only in Bursa, Turkey, where every installation is done with a project: an on-site survey first, then a written quote, and the survey fee is deducted if you go ahead. Residual current protection, a circuit breaker and surge protection are standard in our installations. Details are in Home EV charger installation cost.

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