Safe electricity for your cottage – without worries
Electricity that works discreetly and safely – even when you’re not around.
What this means for the user
- 230 V equipment
- Self-regulation
- Automatic cut-off
This is not an experimental system, but a system where safety is the starting point - not an optional extra.
Ordinary 230 V equipment
Self-monitoring
Cuts off the power in the event of a fault
🧍♂️ Protecting people always comes first
30 mA residual current device
Cuts off the power immediately if a leakage current is caused by a person or moisture
Short-circuit and overload protection
Prevents overheating of wiring and equipment
Touch-protected construction
No bare connectors or dangerous voltages within the user’s reach
All touchable parts are protected
Also battery also in a sealed case, which can be locked
In practice
You can use the equipment normally, without having to understand electrical engineering.
🔧The system also protects itself
Constantly monitors
Wattium constantly monitors:
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voltage
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Power
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Temperature
Limit or stop
If any value exceeds the allowed limit:
➡️ power is limited or
➡️ the system stops in a controlled manner
Prevents damage
This prevents:
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equipment damage
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premature battery wear
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incidents in exceptional circumstances
In practice
In everyday life, you can’t always anticipate everything – your appliance could break or a digger could snap a cable.
Wattium constantly monitors its own state and protects itself from failure.
🔋 Safe battery technology
Safe battery technology
Wattium uses LiFeYPO₄ batteries, which are:
- chemically stable
- do not ignite or explode like some lithium batteries
- safe also indoors
- Battery works in temperatures down to -45C
- A quality and respected industrial battery that can take the strain
Monitoring per sensor
A cell-specific module keeps cell reserves in balance
It also monitors the status of the cells
If a single cell exceeds the safety limits, the whole device is switched off
Overshoot and overcharge protection
It is very easy for the user to understand and manage the battery charge status
When there is not enough from the panels, the aggregate can fill the gap
The device goes into sleep mode if the battery is almost empty
Returns to supply mode when voltage rises or user commands
Inverters also prevent voltage supply if the battery is almost empty
Connectors to prevent misconnection
No bare connectors or dangerous voltages within the user’s reach
The battery is in a sealed case that can be locked
In practice
This is one of the main differences to cheap DIY solutions.
❄️ Safety does not depend on the internet or the weather
Works even without internet
Device functions are local, no decisions are made online
Therefore, even a disconnection from the internet does not prevent access to electricity
The mobile phone can be used to monitor the device locally
Designed for the cold
If you can’t get to the cottage, the battery will still last through the winter if you cut the power.
Battery self-discharge is only 1% per month
The battery does not cut power below -20 C like many other devices do
Charging below 0 C without heating
Clear main switches
Main switch for battery and panels
230 V supply main switch
230 V connectors, as an additional safety device for disconnecting power
Controlled aggregate modes
If the aggregate goes into protection mode it will be detected
Aggregate shutdown is also detected
Hour counters for your aggregate – avoid unexpected tank draining
In practice
Remote monitoring is a complement – not a prerequisite – for safe operations.
The performance of the device has been refined over years of real winter use.
🆚 Not all off-grid systems are the same
It's always worth asking:
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Does the system have a residual current device?
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Does the power automatically cut off in the event of a fault?
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Is the battery safe indoors?
- How is the battery protected and how do you exit the protected area?
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Are temperature and load continuously monitored?
If the answers are unclear, the risk remains with the user.
Security is not a feature – it’s a starting point
Wattium is designed for people who want:
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cottage electricity to work reliably
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without constant adjustment
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and above all safely
👉 If there’s something you’re wondering about, ask – we’ll be happy to answer.
