(Simpson & Partners Chargers)
Your Wireless Energy Manager (WEM) is a small device installed near your fuse board.
It tells your Simpson & Partners charger how much electricity your home is using in real time. This allows the charger to:
Think of it as the charger’s “energy traffic controller”.
Yes — occasionally.
The Wireless Energy Manager is designed to harvest power from your home’s electrical system. However, every 6–9 months it may need a manual top-up charge via USB.
This is completely normal.
If the Wireless Energy Manager:
Your charger will automatically switch to a safe default charging speed.
This speed is set during installation and ensures your home cannot be overloaded.
Your charger will still work — it may just charge slower than usual.
Charging it is simple:
It is usually installed near your fuse board (consumer unit).
Connect a standard USB cable to the device and plug it into a USB power source.
Allow it to charge for up to 10 hours to fully top up.
Press the pair button on the back of the device.
If you see a blue light, the device has power.
That’s it — your system should now return to normal dynamic charging.
If:
Please contact Simpson & Partners support and mention you have checked and charged the Wireless Energy Manager.