Why UPS batteries catch fire easily

A UPS battery (uninterruptible power supply battery) is a device used to provide a temporary power supply, often used to protect computers, network equipment and other critical equipment during power outages or power fluctuations. It can store electrical energy and automatically convert to backup power when the grid power supply is interrupted, ensuring continuous operation of the equipment and avoiding data loss and equipment damage. UPS batteries can be built based on lead-acid, lithium-ion and other chemical technologies and have high energy density and fast response characteristics. By providing stable power support, UPS batteries play a vital role in environments where power is unstable or interrupted.

Why UPS batteries catch fire easily

UPS (uninterruptible power supply) batteries catch fire mainly due to the following reasons:

Chemical Reactions and Thermal Runaway: UPS batteries are typically lead-acid or lithium-ion. During the charging and discharging process, chemical reactions occur inside the battery, generating heat. If a battery is improperly designed, used incorrectly, or has a manufacturing defect, it can cause thermal runaway, which can lead to a fire.

Overcharging and over-discharging: If the battery is overcharged or over-discharged for a long time, it will cause gas to be generated inside the battery and increase the pressure, which will cause the battery package to rupture and may cause a fire. Overcharging and over-discharging usually occur when the electronic system that manages the battery fails.

Mechanical damage: Severe mechanical damage to the battery casing, such as being squeezed, punctured, or dropped, may destroy the isolation layer inside the battery, causing a short circuit, which may lead to a fire.

Design and manufacturing defects: Some cheap or low-quality UPS batteries may have design or manufacturing defects, such as inappropriate materials, insufficient isolation layers, etc. These defects may increase the risk of battery fire.

Overload and overheating: UPS systems require high currents for short periods of time when power is interrupted, which can cause the batteries to overload and generate excessive heat. Additionally, if the UPS system's cooling system fails, the batteries may overheat, increasing the risk of fire. In order to reduce the risk of UPS battery fire, manufacturers usually conduct strict design and testing to ensure the safety performance of the battery. Users should also follow the instructions when using UPS batteries, avoid excessive charging and discharging, avoid mechanical damage, regularly check the battery status, and keep the cooling system of the UPS system working normally to reduce the risk of fire.

Why UPS batteries catch fire easily

Measures to prevent UPS battery fire include the following aspects:

Proper use and maintenance: Follow the manufacturer's instructions and maintenance recommendations to ensure that the UPS system and batteries are operated in the correct manner. Regularly check the battery status, including battery voltage, charging status and appearance, to detect problems and take measures in time.

Environmental conditions: Place the UPS equipment in a well-ventilated, dry and clean environment, avoiding high temperature, moisture and dust. Temperatures that are too high or too low may affect battery performance and safety.

Overcharge and over-discharge protection: Make sure the UPS system is equipped with overcharge and over-discharge protection mechanisms to prevent the battery from being overcharged or over-discharged for a long time. This can be achieved through electronic monitoring and control.

Battery Management System: Use a UPS system with an advanced battery management system (BMS) to monitor the status and performance of the battery. BMS can provide timely warnings about over-temperature, over-voltage, over-current and other issues to help prevent the risk of fire.

Mechanical protection: Avoid mechanical damage such as extrusion, puncture or impact to the battery shell to prevent the internal isolation layer of the battery from being damaged and causing a short circuit.

Cooling system: Make sure the cooling system of the UPS equipment is working properly to prevent the battery from overheating. Overheating may cause thermal runaway of the battery, increasing the risk of fire.

Regular inspection and maintenance: Perform regular maintenance and inspection on the UPS system and battery, including cleaning battery terminals, checking wire connections, replacing aging batteries, etc.

HZ2526 Series Battery Internal Resistance Tester