Charging via a 400V three-phase connection

Have a 400V three-phase connection on site? You can charge the Ventus in no time. With up to 12 kW of charging power, the battery can be fully charged in under two hours. Ideal for a quick top-up between tasks or an overnight charge ahead of the next working day.

Charging from a standard 230V socket

No three-phase power available? No problem. With an external charger, you can also connect the Ventus to a standard 230V socket. With up to 2 kW of charging power, the battery can be fully charged in around 10 hours. Meanwhile, the Ventus can continue to supply 400V three-phase power, making it available even on sites with only a 230V connection.

Charging with solar panels

Solar panels let you generate your own renewable energy to charge the Ventus. You can connect them directly through the integrated MPPT charge controllers or use solar panels with microinverters.

Charging directly from solar panels

The Ventus has two integrated MPPT charging inputs and supports up to 16 kW of solar panels. Its wide voltage range allows for a variety of configurations, from around 8 to 40 panels. The solar energy generated charges the battery directly, with no external inverter required. Ideal for mobile site offices, containers and other temporary facilities with flat roofs.

Charging from solar panels with inverters

Already have a solar installation with inverters or microinverters? Provided it meets the technical requirements, you can also use it to charge the Ventus 12K. The solar energy generated is converted into alternating current and fed into the battery system through a suitable AC connection. With up to 12 kW of AC charging power, the Ventus 12K offers a way to make use of existing solar installations.

Charging at a Type 2 AC charging station

You can also charge the Ventus 12K at a Type 2 AC charging station. Wattsun offers a dedicated charger for this, available separately. It allows you to charge the Ventus at up to 12 kW, fully charging the battery in under two hours, provided the charging station supplies enough power. Ideal when you’re on the move or working at a site with existing charging infrastructure. It’s a convenient way to use available charging facilities to quickly recharge your mobile power supply.

Charging with a generator

A generator can also be used to charge the Ventus. Thanks to its hybrid operation, the generator only needs to run when extra energy is required. The Ventus stores this energy and then supplies quiet, emission-free power to your equipment. This can significantly reduce generator running hours and improve overall efficiency. The generator runs at its most efficient operating point while charging the Ventus, then switches off automatically. Together, they provide a reliable power supply.

Combining energy sources with hybrid charging

The Ventus really comes into its own when combining different energy sources. Think solar panels generating energy during the day, mains power when available and a generator as backup. Thanks to its intelligent energy management, the Ventus 12K makes efficient use of the available energy sources, charging the battery while powering connected equipment. It can also combine power from a connected source with power from the battery. This means the available connection does not always need to cover the equipment’s full operating or peak power demand. If the equipment needs more power than the source can supply, the battery makes up the difference.