A good inverter typically has the following characteristics and standards:

Efficient conversion rate: The inverter should be able to efficiently convert direct current into alternating current. A high conversion rate means less energy loss, thereby improving the operational efficiency of the equipment and extending battery life.

Stable output: A good inverter should provide stable output voltage and frequency, whether it is a pure sine wave or a correction wave, to ensure good waveform quality and avoid damage to connected electrical equipment or affecting their performance.

Compatibility and diversity: Inverters should support multiple devices and be able to adapt to the charging needs of different devices. It should have multiple output sockets and interface types to be compatible with different electrical and electronic devices.

Safety and protection functions: The inverter should have multiple safety protection functions, such as overload protection, overvoltage protection, undervoltage protection, short circuit protection, over temperature protection, etc., to ensure safety during use and prevent equipment damage or fire risks caused by unexpected situations.

Durability and reliability: Inverters should use high-quality materials and manufacturing processes to ensure excellent durability and reliability during use. It should be able to operate stably under various environmental conditions and be less prone to malfunctions.

Easy to operate and maintain: A good inverter should have a simple and intuitive operating interface, which is convenient for users to operate and monitor. Meanwhile, its maintenance should be simple, convenient, and easy to clean and repair.

Energy conservation and environmental protection: Inverters should be designed with consideration for energy conservation and environmental protection, using low-power design and environmentally friendly materials to reduce energy consumption and environmental impact.

Good after-sales service: A good inverter brand usually provides comprehensive after-sales service, including technical support, maintenance, and replacement, to ensure that users receive timely and effective assistance during use.

In summary, a good inverter performs excellently in terms of conversion efficiency, stability, compatibility, safety, durability, operability, energy conservation and environmental protection, as well as after-sales service. It can meet various needs of users and provide stable and reliable power supply.