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Lithium batteries can be roughly divided into two categories: metal lithium batteries and lithium-ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable.

The household inverter is a common device in household appliances such as air conditioners, computers, refrigerators, etc. Its main function is to realize the conversion of different types of currents.

The function of a household inverter is to convert DC power, that is, the current in some batteries and accumulators, into a tool for AC power. In layman's terms, a household inverter is a device that helps convert direct current into alternating current.

Energy storage function: The photovoltaic power generation time and the load power consumption time are not necessarily synchronized. The photovoltaic off-grid system can generate electricity only when there is sunlight. The power generation reaches the highest at noon, but the electricity demand is not high at noon. Many household off-grid power stations are in Electricity only at night. Therefore, the electricity generated during the day needs to be stored by the battery first, and then the electricity is released when the electricity peaks.

The off grid inverter refers to the inverter capable of V / F control. Its outermost loop is the voltage loop, which can stabilize the voltage and frequency of the AC bus.

The solar charge controller is mainly used to protect the battery from solar energy. It's some kind of overload protection. It protects the battery from external discharges and is a kind of low-level cargo hold.