As the Northern Hemisphere nears summer, high temperatures increasingly affect the operational stability of inverters—core energy storage components—making internal cooling fan maintenance critical. These fans, which activate automatically above 50°C, use motors to drive blades for airflow and heat dissipation. Summer heat prolongs fan load and shortens lifespan, while dust buildup and humidity fluctuations may cause malfunctions. The article recommends targeted upkeep: choosing a well-ventilated, clean installation site, conducting weekly inspections and monthly cleanings, tightening screws, lubricating bearings, and replacing aged/damaged parts promptly. These steps ensure efficient fan operation, sustain inverter stability in high temperatures, and boost energy storage system performance and reliability.

The article takes the DEMUDA lithium battery as a case study, elaborating on the core factors to consider when selecting energy storage batteries, such as compatibility, technology, scalability, quality, and after-sales service. This battery is compatible with major inverter brands, reducing procurement and maintenance costs. It employs Grade A lithium iron phosphate (LiFePO4) batteries and an intelligent battery management system (BMS), ensuring safety, efficiency, and a long lifespan. Supporting up to 15 parallel expansions (5-225kWh), it has undergone rigorous aging tests and offers a 10-year warranty with a 48-hour after-sales response. It meets diverse power needs across various scenarios, making it a secure and reliable energy storage solution

The article focuses on the Demda solar-powered water pump inverter, introducing its core functions and advantages. This product is compatible with both AC and DC water pumps, supporting dual modes of photovoltaic direct drive and grid power complementation, and can intelligently track the maximum power point of photovoltaic systems. With built-in protections such as overload and undervoltage, it boasts a high protection rating and can adapt to complex outdoor environments. Suitable for applications like farmland irrigation and garden watering, the product helps reduce energy costs and promotes water conservation, energy efficiency, and sustainable development in related fields.

The article first introduces the definition, structure, and common meanings of IP protection levels for inverters. Then, it analyzes their impact on the selection of protection levels from four aspects: environmental factors, application scenarios, equipment characteristics, and cost factors. It emphasizes the need to balance protection performance and cost, comprehensively consider various factors in order to select the appropriate protection level, ensure stable operation of inverters, and extend their service life.

The article introduces the current situation, feasibility, challenges, and effectiveness of replacing old energy storage batteries with new ones. The global European, American, and Asian markets each have their own development characteristics, and this model is feasible in terms of economy, technology, and policies. However, it faces market and technological challenges such as chaotic recycling channels and lack of evaluation standards. Currently, significant achievements have been made in resource recycling, cost reduction and demand expansion, environmental protection, and other aspects.