Youlian battery 12V25AH

Youlian battery 12V25AHdetailed description:

The Korean UNION battery was born in 1977 and passed the Korea Telecom KOREAN PTT battery quality certification and the US UL safety certification in 1983. It was used as a backup power source for the 1986 Asian Games and the 1988 Seoul Olympics. UNION BATTERY CORPORATION， With the development of its business, UNION Battery has established production bases in countries such as South Korea, India, China, and Iran. Its production base in Chinese Mainland is a Sino Korean joint venture that produces VRLA Battery in China. The main production and testing equipment is imported equipment. And it has a sound ISO9001-2000 system.

Precautions for using Youlian batteries:

1. When the battery is charged at the factory, its capacity will be affected to varying degrees from the factory to installation and use. If it takes a long time, it should be recharged before being put into use. If the storage period of the battery does not exceed one year, charge it for 5 days under the condition of constant voltage of 2.27V/battery. If the storage period of the battery is 1-2 years, it can be charged for 5 days under constant voltage of 2.33V/battery.

When using battery float charging, it is necessary to ensure that the float charging voltage of each individual battery is 2.25-2.30V. If the float charging voltage is higher or lower than this range, it will reduce the battery capacity or lifespan.

When the battery is in float charging operation, the voltage of each individual battery should not be lower than 2.20V. If the voltage of each individual battery is lower than 2.20V, balanced charging is required. The method of balanced charging is: charging voltage of 2.35V per unit, charging time of 12 hours.

When the battery is used in a cyclic manner, constant voltage current limiting charging is adopted after discharge. The charging voltage is 2.35-2.45V per unit, and the high current is not greater than 0.25C10. The specific charging method is to first use a current not greater than the above high current value for constant current charging. When the average cell voltage rises to 2.35-2.45V, switch to constant voltage charging with an average cell voltage of 2.35-2.45V until the charging is complete.

5. The symbol for charging during battery cycling:

Under the above current limiting and constant voltage conditions for charging, the indicator of sufficient charge can be selected as one of the following two criteria for judgment:

⑴ Charging time is 18-24 hours (non deep discharge time can be shorter).

At the end of the charging period, the charging current value remains unchanged for three consecutive hours.

The voltage value for charging with a constant voltage of 2.35-2.45V is the specified value for an ambient temperature of 25 ℃. When the ambient temperature exceeds 25 ℃, the charging voltage should be correspondingly reduced to prevent overcharging. When the ambient temperature is below 25 ℃, the charging voltage should be increased to prevent insufficient charging. The usual decrease or increase is 0.005V per monomer for every 1 ℃ change.

After discharging, the battery should be recharged immediately. If the discharged battery is left idle for too long, even if it is recharged, its original capacity cannot be restored.

When using the 7 batteries, be sure to tighten the bolts connecting the wire terminals to avoid sparks and poor contact.

Youlian battery 12V25AHSeries product models and specifications:

Main characteristics of Youlian battery:

Safe sealing

During normal operation, the electrolyte will not leak from the terminals or casing of the battery.

No free acid

The special liquid absorbing partition keeps the acid inside, and there is no free acid inside the battery, so the battery can be placed in any position.

Deflate system

After the internal pressure of the battery exceeds the normal level, VRLA (Valve Regulated Lead Acid Battery) battery will release excess gas and automatically reseal to ensure that there is no excess gas inside the battery.

Easy maintenance

Due to the gas recombination system, the generated gas is converted into water, and there is no need to add water during the use of the battery.

long service life

The lead calcium alloy fence with corrosion-resistant structure is used, and the battery can be used for 10-15 years on float charging.

Stable quality and high reliability

Adopting * production technology and strict quality control system, the quality of the battery is stable and the performance is reliable. Voltage, capacity, and sealing are inspected online.

Product features of Youlian battery: leak proof, maintenance free; Adopting a green appearance and environmentally friendly products; Special additives give the battery high current discharge performance; In the extensive application and production of statistical techniques, the consistency of batteries is good; *Maze style multi-layer sealing structure, never leaking acid; High density lead paste, high-temperature and high humidity curing process, long-life design; Youlian battery ABS plastic high-strength shell; *Structural design achieves * sealing, combined with high-efficiency oxygen recombination technology, to complete water regeneration, thereby achieving the effect of no need for water addition and no maintenance; The battery discharge rate is very low, with a monthly discharge of less than 3% at room temperature (25 ℃). Extremely low internal resistance, high rate discharge performance of *, providing strong power. Under normal float charging conditions, the battery life can reach over 12 years (2V series) or 6-8 years (6V/12V series).

Youlian Battery fully adopts advanced lead-acid battery manufacturing technology in the development and manufacturing of lead-acid batteries.

Even if high-quality products are not maintained properly, it will obviously have a certain impact on their later use and lifespan. In order to properly handle this issue and ensure that everyone reaches the state of operation during the use of Youlian batteries,
The maintenance status of Youlian batteries is still very important. Due to different detailed usage methods, maintenance methods should also be appropriately modified, which is the key to ensuring quality.

During the monthly maintenance period, it can be used to clean and inspect the interior one by one to ensure that the temperature in the room meets the specifications. Checking for cracks in the battery casing is key to ensuring smooth operation of the current.

In addition, during the quarterly maintenance phase every three months, it is necessary to record the data of Youlian batteries, especially in the voltage area, in order to make the application more in line with the prerequisite application specifications. If the components are loose, they should be tightened in a timely manner to avoid poor contact and damage to the battery terminals.

Advantages and Performance of Youlian Battery:

Green and pollution-free
Silent and free from pollutant discharge. The battery room does not require acid and anti-corrosion measures and can be located in the same room as electronic instruments and other equipment.

Low self discharge rate
Using a special lead calcium multi-element alloy, impurities in the separator, electrolyte, and various production processes are strictly controlled. In an environment of 20 ℃, KSTAR rechargeable batteries can be used normally without the need for additional energy for 6 months.

High safety and reliability
Adopting a fully automatic safety valve (VRLA) can prevent gas from being sucked into the battery and affecting its performance, while also preventing damage to the battery caused by abnormal internal pressure due to gas generated during charging and other processes. A fully enclosed battery will not release electrolyte or acid mist during normal float charging. At the same time, the battery tray using independent technology is used in conjunction with the battery to ensure safer use of the battery pack.

Strong directionality
Special diaphragm (AGM) firmly adsorbs electrolyte to prevent it from flowing. The battery will not leak whether placed vertically or horizontally, ensuring normal use.

Strong conductivity
Adopting copper core silver plated terminals and special design to ensure electrical performance. At 20 ℃, the float charging life of FM series small sealed batteries can reach 3-5 years, FM fixed sealed batteries can reach 8-10 years, FML series batteries can reach 10 years, FMH series batteries can reach 10 years, and GFM series batteries can reach 15 years.

Strong adaptability to the environment
Can be used in ambient temperatures ranging from -20 ℃ to+50 ℃, suitable for desert and plateau climates. Special power sources that can be used.
Using special lead calcium multi-element alloys, strict control is applied to impurities in separators, electrolytes, and various production processes. It can be used normally without the need for additional electrical energy within 6 months at 20 ℃.

Maintenance and upkeep of UPS
Good maintenance and upkeep can greatly extend the service life of UPS. The battery is an important component of the UPS system, and its quality directly affects the reliability of the entire UPS system. However, the battery is also a device with a short mean time between failures (MTBF) in the entire UPS system. So, the maintenance and upkeep of UPS mainly involves the maintenance and upkeep of the batteries inside the UPS.
The types of batteries can generally be divided into lead-acid batteries, maintenance free lead-acid batteries, nickel cadmium batteries, etc. Their respective characteristics are as follows:
Category/Overview/Advantages and Disadvantages:
Lead acid batteries/general batteries, also known as automotive batteries/require water maintenance, with an expected lifespan of 1-3 years. Hydrogen gas is generated during charging and discharging, and the installation location must be equipped with exhaust pipes to avoid danger; The electrolyte is acidic and can corrode metals; Low price.
Lead acid maintenance free battery/new type battery/no need to add water, with an expected lifespan of 5-7 years. Sealed charging does not produce any harmful gases; Easy to decorate, no need to consider ventilation issues in the placement location, maintenance free, maintenance free; High discharge rate, stable characteristics, and high price. Nickel cadmium batteries/batteries are used in special occasions and special equipment/require water, with an expected lifespan of 20-40 years. Water is the medium, and charging and discharging will not produce harmful gases; Low water loss rate, but requires fixed time for water addition and maintenance; Discharge characteristics; Can be placed in any harsh environment.
Most backup UPS systems nowadays are equipped with maintenance free lead-acid batteries. The factors that affect the service life of batteries include: UPS usage environment, ambient temperature, charging and discharging current, charging voltage, and discharge depth.