Standby Battery

Your Professional Standby Battery Manufacturer in China!

Shimastu Electronic Technology Co., Limited, a premier manufacturer of Sealed Lead Acid batteries&Lithium batteries, was established in 2001 and located in Zhongshan City, Guangdong Province, China.

Why Choose Us

Wide Product Range

Our main products cover AGM VRLA batteries, GEL batteries, OPzV/OPzS batteries, font terminal batteries, 2V long-life batteries, lead carbon batteries, lithium batteries, Car batteries, etc.

Quality Guaranteed

Shimastu strictly works on quality control of all production steps, ensuring all the products a reliable performance and high quality, and the company has been certified with ISO 9001, ISO 14001, UL and CE, etc.

Wide Applications

Shimastu has been exporting to worldwide clients serving in the energy storage and power backup industry such as UPS/EPS, solar power systems, security systems, emergency lighting systems, telecom systems, data centers, etc.

High Quality Service

We specialize in research and development, manufacturing, sales, and marketing of full categories of batteries. We are committed to providing a high level of customer service, and 24/7 customer support, so all your problems can be responded to quickly.

High-Rate Discharge Batteries

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Long-Life AGM VRLA Batteries

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High-Rate Discharge Batteries

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Definition of Standby Battery

‘Standby’ use - Using batteries as backup power. Batteries used in standby applications are predominately used to supply emergency power, helping prevent any damage that may be caused by sudden loss of mains power. For standby power applications, so-called stationary or standby batteries are often used. These standby batteries are rarely discharged and their charge is constantly maintained.

AGM VRLA Batteries for General UPS Purpose

Working Principle of Standby Battery

The standby battery produces electrical energy on demand by using the terminals or electrodes of the battery. The positive terminal is located on the top of the battery. The outer case or bottom of the battery is commonly referred to as the negative terminals. Both terminals are very common in all types of batteries.

The chemicals that surround these terminals and the battery together form the power cell. The power cell generates energy whenever the positive and negative terminals are connected to an electrical circuit. For example, the metal part in the flashlight case and the device is on. The chemicals inside the cell (alkaline or lithium) begin a reaction to produce the ions and electrons that power anything attached to the battery.

Benefits of Standby Battery You Want to Know

They are Spill-Proof

Unlike the traditional lead-acid batteries that freely flood their electrodes, AGM standby batteries have glass mats that prevent this. Additionally, it is the function of these glass mats to avoid spillage. Rather than absorbing the electrolyte, the glass mats work by holding the electrolyte in place, preventing it from spilling over, even when the battery is placed in odd positions.

They Have a High-Power Output

Because of the way that they are designed, the AGM standby batteries have minimal internal resistance. This, therefore, enables them to provide sufficient bursts of power when necessary, such as when one needs to start a battery. Due to this feature, these batteries respond better to loading than any other battery on the market.

They Have a Short Charging Time

AGM standby batteries, compared to flooded batteries, charge quickly. When compared to flooded batteries of a similar capacity, the charging rate can reach five times faster with the same power source.

They Have a Longer Lifespan

AGM standby batteries have a longer lifespan than traditional flooded batteries. Moreover, not only do they serve for a more extended period when they perform the same tasks, but they also last longer when they are not in active use. This is because self-discharging is minimized in these batteries, unlike other types of batteries, which is a huge problem. This ensures that one does not have to keep charging them after an extended period of inactivity.

They are Durable

These AGM batteries were originally designed to serve the aircraft industry. This means that they have a sturdy design, one that can handle conditions of intense vibrations, just like those in military and commercial aircraft. Because of this property, they are a favorite for high-end motorcycle riders and race car drivers. The sandwich construction method adopted in their design ensures that their internal components do not fall apart. Moreover, they are invulnerable to the subsequent wear and tear that may result from frequent and continuous vibrations. Furthermore, they can withstand extreme temperature variations.

They are Unlikely to Build up Sulfation

Sulfation is the property of lead-acid batteries, where there is a gradual accumulation of lead sulfate crystals in the cells. In most cases, it is the cause of failure in lead-acid batteries. Sulfation mostly occurs when the battery is not fully charged, and thus the crystals continuously build up on the plates. When this process goes out of hand, it prevents the efficient conversion of chemical to electrical energy. Therefore, for other types of lead-acid batteries, it is essential to charge them every six months to prevent sulfation. However, in AGM standby batteries, sulfation is significantly reduced. Therefore, they can be stored for extended periods without needing a recharge.

Applications of Standby Battery

Aircraft Emergency Batteries

Standby batteries in aircraft keep essential instruments and devices running in the event of an engine power failure. Each aircraft has enough power in the backup batteries to facilitate a safe landing. The batteries keeping navigation, ELUs (emergency lighting units), emergency pressure or oxygen systems running at altitude, and radio equipment operational. Larger aircraft have control surfaces that run on these backups as well. Aircraft batteries are either nickel-cadmium or valve-regulated lead acid type. The battery keeps all necessary items running for between 30 minutes and 3 hours.

Burglar Alarms

Standby batteries are almost always used in burglar alarms. The backup battery prevents the burglar from disabling the alarm by turning off power to the building. Additionally these batteries power the remote cellular phone systems that thwart phone line snipping as well. The backup battery usually has a lifespan of 3-10 years depending on the make and model, and so if the battery runs flat, there is only one main source of power to the whole system which is the mains power. Should this fail as well (for example, a power cut), it usually triggers a third backup battery located in the bellboxes on the outside of the building which simply triggers the bell or siren.

Computers

Modern personal computer motherboards have a standby battery to run the real-time clock circuit and retain configuration memory while the system is turned off. This is often called the CMOS battery or BIOS battery. Backup batteries are used in uninterruptible power supplies (UPS), and provide power to the computers they supply for a variable period after a power failure, usually long enough to at least allow the computer to be shut down gracefully. These batteries are often large valve regulated lead-acid batteries in smaller or portable systems. Data center UPS backup batteries may be wet cell lead-acid or nickel cadmium batteries, with lithium ion cells available in some ratings.

Telecommunications Networks and Data Centers

A valve-regulated lead-acid battery (VRLA) is a battery type that is popular in telecommunications network environments as a reliable backup power source. VRLA batteries are used in the outside plant at locations such as Controlled Environmental Vaults (CEVs), Electronic Equipment Enclosures (EEEs), and huts, and in uncontrolled structures such as cabinets. VRLA Battery String Certification Levels Based on Requirements for Safety and Performance, is a new industry-approved set of VRLA requirements that provides a three-level compliance system.

Hospitals

Power failure in a hospital would result in life-threatening conditions for patients. Patients undergoing surgery or on life support are reliant on a consistent power supply. Standby generators or batteries supply power to critical equipment until main power can be restored.

Power Stations

Power failure in a power station that produces electricity would result in a blackout situation that would cause irreparable damage to equipment such as the turbine-generator. The safety of power station employees is a major concern during an unscheduled power outage at a power plant. A bank of large station backup batteries are used to power uninterruptible power supplies as well as directly power emergency oil pumps for up to 8 hours while normal power is being restored to the power station.

What’s the Difference between Standby and Cyclic Batteries?

Standby Batteries

Standby basically means that a ‘standby’ battery is designed to be used on mains powered electric charge for its entire life and used only in an emergency. This is over against a ‘Cyclic’ battery which is designed for a more rigorous lifestyle of multiple uses. Standby batteries are designed to be placed on 240V Mains powered charge and only used in the case of an emergency. VRLA (Valve Regulated Lead Acid) AGM (Absorbent Glass Mat) batteries are the main technology referred to by the industry as ‘Standby’. Battery installers and specifiers will note that sometimes the AGM battery may also get labelled ‘Deep Discharge’. This is an industry labelling to differentiate the battery as utilising thicker lead plates meaning it has a longer life expectancy and will cycle better if required. Standby Batteries are popular for applications such as Electric Doors, UPS, Security Alarm Systems, Fire Suppression and Pumping Systems.

Cyclic Batteries

Cyclic batteries are batteries designed to be heavily discharged or placed on a less constant form of charge, for example, solar or wind. These batteries may come in a variety of VRLA technologies but are mainly characterise the Gel and OPzV technologies. Lithium batteries would fall under the cyclic category as well as they handle regular heavy discharges extremely efficiently. Cyclic batteries are mostly utilised in applications such as Remote solar, mobility, and wind-generated power storage.

How to Choose Standby Battery

Consider Reserve Capacity

Look for a standby battery with a high reserve capacity. This means that the battery can deliver more amperes (current) for longer periods of time, and has a low internal resistance, which means that it is not prone to overheating or overcharging.

Check the Life Span

Select a standby battery with a long life span. Check how many years you want the battery to last — this will depend on how often you use it and how much power it provides.

Check for Reliability, Safety, and Maintenance Needs

Choose one that is reliable, safe, maintenance free and environmentally friendly. If possible, try comparing standby performance rather than just starting performance because this gives a better indication of what happens when the engine is off but still running other equipment like lights. If you are buying a battery for an emergency power supply, look for one that has been tested at least once per year and labeled as “spill proof”. This will make it easier to transport and store. If you need a battery for your car, look for one that has the correct voltage and amperage capacity. This will ensure that it fits your vehicle and can handle the electrical requirements of all its components. If you are planning to get a deep cycle battery, ask how many cycles it can provide before needing replacement - this will depend on how often it is used and how much power it provides.

Maintenance Tips for Standby Battery

Visual Inspection: Regularly inspect the standby batteries for signs of damage, corrosion, or leaks. Check for loose connections or cables that may affect the battery’s performance. Address any visible issues promptly.

Temperature Control: Maintain proper temperature conditions for the standby battery storage area. High temperatures can accelerate battery degradation, while excessively low temperatures can reduce the battery’s capacity. Ensure adequate ventilation and temperature regulation to optimize battery performance.

Regular Testing: Conduct regular standby battery capacity tests to evaluate their health and performance. Load testing, in particular, can assess the battery’s ability to deliver power under simulated outage conditions. This helps identify any weak or failing batteries that may require replacement.

Cleaning and Maintenance: Keep the standby battery terminals and connections clean and free from dirt, dust, or corrosion. Regularly clean the battery cabinets and surrounding areas to prevent the buildup of debris that can impact battery performance.

Replacement Schedule: Develop a battery replacement schedule based on manufacturer recommendations, usage patterns, and test results. Batteries have a limited lifespan, and proactive replacement ensures the availability of reliable backup power.

Documentation and Monitoring: Maintain detailed records of standby battery maintenance, including inspection dates, test results, and replacements. Use battery monitoring systems to track battery health, voltage levels, and temperature. This data provides valuable insights into the condition of the batteries and helps plan for timely maintenance and replacements.

Certifications

Our batteries have been certified with ISO 9001, ISO 14001, UL and CE, etc.

Our Factory

Frequently Asked Questions (FAQ) about Standby Battery

Q: What is the typical lifespan of a standby battery?

A: The typical lifespan of a standby battery depends on the type of battery and its usage. Lead-acid batteries used in standby applications can have a lifespan of 3-5 years, while lithium-ion batteries can last up to 10 years. However, various factors such as temperature, usage pattern, maintenance, and storage conditions can affect the lifespan of a standby battery. It is recommended to regularly check and replace batteries to ensure they are functioning correctly.

Q: Can standby batteries be replaced?

A: In some devices, standby batteries are replaceable, while in others, they are integrated. In summary, a 3-year replacement interval is suggested for lead-acid batteries used in standby/backup applications when no other information about the application is available.

Q: What are common factors affecting standby battery life?

A: Cyclic life: The battery life is mainly determined by the use cycles of the battery. An AGM or flooded battery may have a life of 300 to 700 cycles under normal use; however that of a gel battery may be from 500 to 5000 cycles.

Depth of Discharge (DOD) effect: The harder the battery works, the sooner it will fail. This means that a higher capacity withdrawal would result in a reduction of the life cycle.

Temperature effect: Temperature is a major factor in battery performance, shelf life, charging and voltage control. At higher temperatures, there is dramatically more chemical activity inside a battery than at lower temperatures. Therefore, the capacity of a battery is lower when the ambient temperature is too low.

Recharge Voltage and Rate: All lead-acid batteries give off hydrogen from the negative plate and oxygen from the positive plate during charging. The valve regulated batteries (VRLA) have pressure sensitive valves. Without the ability to retain pressure within the cells, hydrogen and oxygen would be lost to the atmosphere, eventually drying out the electrolyte and separators.

Q: Does temperature affect standby battery performance?

A: Yes, extreme temperatures can impact battery life. Avoid exposing devices with standby batteries to very hot or cold conditions. High ambient temperature is the most important factor that influences standby battery ageing and can cause premature battery failure. Higher temperatures mean a faster chemical reaction inside the battery, which increases water loss and corrosion.

Q: Can standby batteries be recycled?

A: Yes, standby batteries can be recycled. Recycling standby batteries is important to prevent environmental pollution and conserve natural resources. It is recommended to dispose of batteries at authorized collection points to ensure responsible recycling.

Q: What is the role of voltage and current in standby battery charging?

A: Voltage and current determine the rate at which a standby battery charges. In standby battery charging, voltage and current play important roles in ensuring the battery is charged properly and efficiently. Voltage is the electrical force that drives current through the battery and determines the rate of charging. During charging, the voltage must be maintained at a certain level to ensure the battery is not overcharged or undercharged. Current is the flow of electrons through the battery and determines the speed of charging. The charging current should be appropriate for the battery's size and type to prevent overheating and damage. Both voltage and current must be monitored and controlled by the charging system to ensure proper charging and prevent damage to the battery.

Q: How often should I check the charging status of my standby battery?

A: To ensure a long battery life, avoid extensive float charging. If possible, limit the float charge time by corresponding charger settings. If a battery is not used for a longer time, prefer a full charge before storing it and check its OCV (Open circuit Voltage) regularly (at least every 3 months).

Q: Can I discharge my standby battery completely?

A: The best way to care for an standby battery is to limit the discharges you about 50% of the capacity, and to charge it using a smart charger (Multi step charger) which will charge it completely but not overcharge it.

Q: Can I store my AGM standby battery for a long period of time?

A: If the storage temperature is 20ºC or less, AGM standby batteries must be charged at least every six months while in storage. For every 8ºC increase above 20ºC, the storage time between charges is cut in half. Therefore; At 28ºC, the maximum storage time is six months.

Q: Can I use my standby battery in extreme temperatures?

A: AGM standby batteries are designed to operate at room temperature and can withstand some temperature fluctuations. However, prolonged exposure to high temperatures can negatively affect battery performance, safety, and lifespan.

Q: Can I connect multiple standby batteries in parallel?

A: Yes, you can put (4) standby batteries in parallel. I wouldn't bother with fuses between each battery, seems like a lot of fuss to me and not necessary. However, it's important to ensure that all batteries are of the same type, have the same voltage rating, and are similarly charged to prevent any damage or overloading. It's also recommended to use a battery bank monitor or charge controller to regulate the charging and discharging of the batteries.

Q: Can I connect multiple standby batteries in series?

A: By connecting two or more standby batteries in either series, series-parallel, or parallel, you can increase the voltage or amp-hour capacity, or even both; allowing for higher voltage applications or power hungry applications.

Q: Can I use my standby battery on a boat?

A: Long lifespan and low self-discharge rate make standby excellent dual-purpose (deep cycle and engine starting) batteries for boats. AGM standby batteries can be used on boats as they are designed for deep cycle use, have a longer lifespan, require less maintenance, and are spill-proof. They are a popular option for marine applications as they can handle the constant movement of boats and the harsh marine environment. However, it is important to ensure that the AGM battery you choose has the appropriate capacity and voltage to meet the power requirements of your boat's electrical system.

Q: Can I use my standby battery on an RV?

A: Standby batteries are powerful enough to handle the demands of an RV, as well as everything inside. It provides the amperage that allows RVs to run for an extended period. Even better, standby batteries are hassle-free. They're entirely sealed, so you'll never have to worry about their contents spilling.

Q: Can I use my AGM standby battery as a backup power source for my home?

A: They're small, lightweight, and require minimal maintenance, making them a cost-effective investment in the long run. Whether you need backup power for your home, off-grid cabin, or mobile application, choosing an AGM standby battery can provide you with reliable and consistent power when you need it most.

Q: How do I calculate the required battery capacity for my backup power system?

A: For example, if your critical loads require 2,000 watts of power and you need backup power for 24 hours, your total load would be 48,000 watt-hours (2,000 watts x 24 hours). Once you have determined your total load, you can select a battery system that can meet your power needs.

Q: Can I use my AGM standby battery with a UPS system?

A: AGM technology is the norm for UPS batteries because of its lower cost, lower internal resistance and higher charge/discharge rates. By comparison, Gel-filled VRLA has a higher internal resistance, which makes it less suitable for high-rate discharging common with UPS applications.

Q: Can I use my standby battery with a solar power system?

A: Yes, standby batteries can be used with solar power systems. In fact, they are a popular choice due to their maintenance-free design and ability to handle deep discharges without damage. AGM standby batteries are also known for their high cycle life and are a great option for off-grid or backup power applications where reliable energy storage is essential. However, it is important to choose an AGM standby battery with the correct capacity rating for your solar system to ensure optimal performance.

Q: What are the 3 main chemicals inside of a standby battery?

A: 60% of the battery is made up of a combination of materials like zinc (anode), manganese (cathode) and potassium. These materials are all earth elements.

Q: What role does the battery management system play in standby battery performance?

A: A BMS can control the temperature of the battery pack through heating and cooling. Battery management system (BMS) is technology dedicated to the oversight of a battery pack, which is an assembly of battery cells, electrically organized in a row x column matrix configuration to enable delivery of targeted range of voltage and current for a duration of time against expected load scenarios. The battery management system regulates charging and discharging, contributing to overall standby battery performance and longevity.

We're professional standby battery manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale high-grade standby battery made in China here from our factory. For price consultation, contact us.

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