FAQ (general)
Where can I get a Wisla?
The Wisla can be obtained from all e+m partners.Why do I need a wallbox?
A wallbox is primarily used to charge an electric vehicle with a higher charging capacity. The components prevent an excessive load on the domestic power grid and its cables and reduce the charging time of a charging process enormously.
When comparing household sockets and wallboxes, charging is up to 10 times faster, depending on the charging capacity of the wallbox or the power consumption of the vehicle. This allows you to fully charge your vehicle overnight, for example, which is hardly possible when charging via a conventional socket. (You can find a formula for calculating the charging time under the question "How long does it take to charge my vehicle?")
In addition to the faster charging time, the safety aspect plays a major role here. If a household socket is subjected to a long continuous load, for which it was not designed, the power cables can become excessively hot, which can lead to defects or even fires.
How long does it take to charge my vehicle?
In principle, the charging time from 0 to 100% can be calculated as follows:
Charging time = battery capacity in kWh ÷ charging power in kW (+ 30 minutes)
(30 minutes are added to compensate for deviations due to various factors such as ambient and battery temperature as well as the state of charge of the battery).
Please note that the maximum charging capacity of many vehicles is already limited by the manufacturer. For this reason, the charging power can be set in advance on the Wisla Wallbox.
Example calculation: The vehicle contains a battery with a capacity of 77 kWh. The maximum charging power permitted by the vehicle is 11 kW.
77 kWh ÷ 11 kW (+30min) = 7h 30min
If a battery with the same capacity is charged with 22 kW, the charging time is halved, 77 kWh ÷ 22 kW (+30min) = 4h
User note: The ideal charging status of an electric vehicle is between 20% and 80% charge. This protects your battery and thus increases the service life of the battery cells.
As a comparison, we take the same battery, but charge it via the household socket.
77 kWh ÷ 2.3 kW (+30min) = approx. 34h
This corresponds to a charging time of about 1.5 days. This shows how long a socket has to withstand a continuous load to achieve the same result.
What type of connection does my vehicle have
The established standard connection for electric vehicles in Europe is the type 2 plug. This enables AC charging with alternating current. You will also find this connection on the Wisla Wallbox.
You can charge your vehicle with up to 22 kW and 32 A via the type 2 connection with the Wisla Wallbox.
The following graphic shows all possible plug types for electric vehicles.
Does my electric car lose range in winter?
Yes, the range of the battery decreases in cold temperatures. This is due to the electrochemical processes in the battery being slowed down by the cold. As a result, the capacity and voltage of the battery decrease and the battery cells are exposed to greater stress. This also has a negative impact on charging times.
Who will install my wallbox?
The installation of a wallbox is not for amateurs and should be carried out by a specialist. We therefore recommend that you hire a qualified electrician for the installation.
What do I need to consider before installation?
Before a wallbox can be installed, a technical connection application must be submitted as well as an installation notification to the local electricity provider. The exact procedure can be found in the factory regulations of your local electricity provider.
Which power connection do I need?
The Wisla Wallbox can be operated with single-phase or three-phase power. However, we recommend three-phase operation, as otherwise the maximum charging power is only 7.3 kW.
Every domestic installation draws its power from three phases, so all installations are generally suitable for operating the Wisla Wallbox in three-phase mode.
Please note the rated current of the upstream fuse in the domestic installation. The charging power must not exceed this value.
Are there subsidies for the wallbox?
The subsidies for a private charging infrastructure depend on the municipality, canton or federal government. This means that the subsidies vary greatly and can be very different.
You can find a first point of contact for your municipality or canton at: https://www.energiefranken.ch/ Enter the postcode of your municipality of residence, select the "Private" tab and set the slider to "Mobility".
Is there an app for the charging station?
No. As all electric vehicles already have an integrated app for vehicle monitoring, there is no need to develop a separate app for the wallbox.
Why is it difficult to plug in the charging cable?
In order to ensure the standardised contact pressure of the contacts in accordance with the EN 62196-1 standard, the plug must be inserted with the appropriate force. This is particularly noticeable in the last few millimetres, as the force required increases progressively due to the design.
Can I also fast charge with the charging cable?
No. In common parlance, fast charging refers to charging with direct current. In other words, so-called "DC charging", which can charge an electric vehicle with up to 350 kW. Due to the high costs and the lack of electrical infrastructure, these charging points are rather unsuitable for purely private use.
The Wisla Wallbox is designed for AC charging and charges your vehicle with up to 22 kW, so a full charge overnight is no problem.