The VOLTRONIC AXPERT VM 1kW 12V Off-Grid Battery Inverter Charger is a pure sine wave inverter that is capable of charging batteries at 12V via the integrated solar charge controller. The inverter chargers are specially designed for off grid electrical installations, i.e. installations where there is no connection to the mains. This inverter, due to its small size and power, is interesting for mobile homes, cabins, etc. The inverter can transform and deliver directly the energy generated by the solar panels to the 220V electrical installation of the property or, on the contrary, when there is no electricity consumption, it can charge the 12V batteries. In case of high power demand, the inverter can supply the required energy by combining both batteries and solar panels.