li ion battery

Why Do Ni-Cd Batteries Have Transport Valves and Operating Valves? Understanding Their Functions and Safety Design

Aug , 29 2026

Nickel-Cadmium (Ni-Cd) batteries are widely used in critical industrial applications due to their excellent reliability, long service life, wide operating temperature range, and strong resistance to harsh environments. During the manufacturing, transportation, installation, and operation processes, battery safety is always a key consideration. One important safety feature of Ni-Cd batteries is the...

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SPD Maintenance: Why Surge Protective Devices Cannot Be Installed and Forgotten

Aug , 31 2026

Quick Answer A Surge Protective Device (SPD) cannot be considered permanently effective simply because its indicator window remains green. The indicator only shows part of the device status. Actual protection performance also depends on installation quality, grounding conditions, upstream protection coordination, wiring length, and previous surge events. During lightning strikes, grid switching, o...

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Why a Running Fan Does Not Mean Your Power Supply Cooling Is Working Properly

Sep , 02 2026

Quick Answer A running fan only shows that the fan is operating. It does not mean the power supply is effectively cooled. Actual cooling performance depends on airflow, air pressure, ventilation design, ambient temperature, and installation conditions. Long-term high temperature can accelerate component aging, reduce available power capacity, and shorten power supply lifespan. Key Takeaways...

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What Is the Function of the Safety Valve in a VRLA Lead Acid Battery?

Sep , 04 2026

Understanding the Importance of the VRLA Battery Vent Valve for Safety and Reliability A VRLA (Valve Regulated Lead Acid) battery is widely used in critical applications such as UPS systems, telecommunications, renewable energy storage, data centers, emergency backup power, and industrial equipment due to its maintenance-free design and reliable performance. One of the most important components th...

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