Tandem Power is a hybrid system that combines a low-voltage DC generator and the inverter battery station into one integrated energy system.
The DC generator does NOT power your home directly.

It charges the battery and battery’s inverter then supplies clean AC power to your appliances.

So physically and electrically, it is:

DC generator charges battery and inverter powers the house.

In Tandem, the DC generator feeds energy directly into the battery system at low voltage
That allows:

• Higher charging efficiency
• Optimized engine operation
• No need to convert AC from generator back into DC for battery charging

A traditional generator powers appliances directly and runs continuously.

A DC generator in Tandem works strictly as a smart charger.

When grid power fails:

1. The battery instantly powers your home.
2. When battery charge drops to a set level, the DC generator automatically starts.
3. The generator runs at optimal speed and charges the battery.

Once charged, the generator shuts off automatically. There is no manual start/stop required.

In a standard generator-only setup:

• The engine runs continuously.
• It operates inefficiently at low loads.
• It wastes fuel while idling.

In Tandem:

• The generator runs only in short charging cycles.
• It operates at peak efficiency during charging.
• It shuts off completely when charging is finished

This is why the flyer states fuel savings of up to 40% compared to always-running generators.

No.

Even when the generator is running, your appliances are powered by the battery inverter — not directly by the engine
That means:

• Stable voltage
• Clean sine wave output
• Safe power for electronics
• No fluctuations from engine RPM changes

The generator is electrically isolated from your appliances — it only charges the battery.