* Build in battery reverse polarity protection.
* Adjustable charge current and output frequency.
*Grid electricity and battery power priority is optional.
* Generator has function of automatic control on and off.
* 90-280V AC wide input voltage.
* AC input and output protect switch.
* Build in battery temperature compensation interface.
* Automatic AC and PV charger after shutdown.
* Low frequency high reliable pure sine wave circuit architecture.
* Optional 8 types of batteries, three-stage intelligent charger