support

FAQ

What are SAGS?

SAGS are short duration decreases in the mains supply voltage which generally last for several cycles. They are one of the more common forms of disturbances. When sags occur sensitive equipment can lock or hang causing data loss and system resets.

What is Surges in ELECTRICITY?

Surges are short duration increases in the mains supply voltage which generally last several cycles. When surges occur equipment can suffer from premature failure. The high voltage causes wear and tear and general component degradation. This may not be noticeable until failure, though heat out is a good sign.

What are Transients and Spikes?

These are very fast high energy surges lasting only a few milliseconds. When transients or spikes occur equipment can lock or hang, crash and even suffer damage which inevitably causes data loss and corruption. Large transients can occur from local or worst case a direct lightning strike.

What is Electrical Noise?

This is a high frequency noise either common or normal mode which can cause severe disruption and damage to circuits and equipment.

What is Brownouts?

This is long term sags in the mains supply voltage which can last up to several days. During a brownout equipment can reset or even shutdown.

What are Blackouts and Mains Failures?

When the mains supply fails completely, known as a total mains failure or blackout. A break in the mains supply of only several milliseconds is sufficient enough to crash, lock or reset many of the components that make up a typical data or voice processing IP network, such as PC, terminal, console, server, PBX, printer, modem, hub or router.

What is a valve regulated maintenance free lead-acid battery?

The basic characteristic of the maintenance-free lead-acid battery is free of maintenance , which is defined to be compared with the traditional flooded batteries, it needs regular maintenance and sulfuric acid storage battery, such as UPS battery, is without adding acid and water during its working, and batteries are sealed, there is no possibility of acid leakage or acid mist, especially, there are one-way safety valves , when pressure of gas exceeds a exact value, the valve opens automatically and outgoing gas, and then shut down automatically, the safety valve is sealed in normal condition.

What kinds of valve regulate maintenance free lead-acid battery?

According to the technology, there are two kinds of lead acid batteries: general type (AGM) and GEL .AGM battery uses glass fiber cotton (Absorbed Glass MAT) as separator, and the lean liquid electrolyte (electrolyte is absorbed on plate and separator, and cannot flow in the battery)the GEL battery makes of silica as solidifier and electrolyte is adsorbed on the plate and colloid.Accordingly to using purpose, they also can be mainly divided into by usage: starting batteries, stationary battery and traction type, etc

What is the rated capacity of the battery ?

In the conditions of the stipulated design (such as temperature, discharge rate and final voltage, etc.), the rated capacity means the battery should be able to release the lowest capacity, the unit is ampere hour, expressed as a symbol of C. Capacity is strongly influenced by the discharge rate, so we often show the discharge rate by a Arabic numerals at the lower right corner of the letter “C”, such as C20=50Ah, it means that under condition of 20 hour rate to discharge to the final voltage ,the capacity is 50 ampere hours. Informally, the rated capacity of 50 ampere hour of battery in full charge of state, the battery can be discharged for 50 hours with 1 A of current.

What is the battery open-circuit voltage?

Refers to the battery in the non-work state which the condition of the battery without any external load current flows, the Value of battery voltage between two terminals is measured by electric meter. The Open circuit voltage measurement can not be utilized as a standard to measure the battery voltage, but it can be compared with each other, it also can determine different time change state of charged battery itself, as a reference.

What is end-of discharge voltage of the battery?

End of discharge voltage is the allowable minimum voltage of battery discharging.
When battery voltage is lower than the end of discharge voltage, the voltage of battery will drop rapidly if discharge it continuously, and it will cased over-discharge of battery, once the compound of battery plate is formed, and the plate will not easy to recover, which affect the lifespan of battery. The End of discharge is connected with discharge rate, and discharge current affect the end-of discharge voltage directly. Under the stated end of discharge voltage, the greater discharge current, the smaller capacity of battery.

What is end-of charge voltage of the battery？

When the battery is fully charged, the active material of the lead plates had reached saturation; the battery voltage does not raise anymore, even charge it continuously.

What is the Depth of discharge？

During battery using, the battery capacity is discharged a percentage of it rated capacity, we called depth of discharge, generally, DOD with 60%, which means the discharged capacity of battery reached 60%, and remained 40% of capacity. It’s a deep connection between depth of discharge and charging life, when deepen the DOD,

What is the floating use and recycling using of batteries?

Recycling: The battery as a direct power supply of the equipment, which is mainly applied for circulation charge and discharge of Electrical hand tools, Portable electronic products and etc.
Float Use: The battery as a emergency power supply for equipment and system, to provide emergency power or energy storage, in order to prevent any inconvenience if any power interruption (Example: power plant, UPS power supply, emergency lighting, etc.)

What are the methods of battery charging ?

There are mainly constant current charging, constant voltage charging, constant current with limiting voltage charging, equalizing charging, float charging and pulse fast charging.

What is float charge and equalizing charge of lead acid battery ?

Floating charging: A battery powered by a circuit when the normal power supply is interrupted. The terminal is always connected with a constant voltage power supply to maintain the battery in a close state of charge.
Equalizing charging: It is a continued charging way to ensure that each monomer of battery will be fully charged uniformly

What are the reasons for the sulfating of the lead plate?

There are several reasons as below,
① The battery charge is insufficient or the first charge is interrupted with a long time;
② Undercharge with long time.
③ Failed to charge timely after discharge;
④ Over discharging with small current or over charging frequently
⑤ The density of electrolyte or the temperature is too high, lead sulfate is formed and not easy to recover.
⑥ Battery stocked with a long time, and and it isn’t charged regularly.
⑦ The of electrolyte is impurity, which caused quickly self-discharge.

What are the requirements for battery storage?

It requires good ventilation facilities, dry conditions (preferably with air conditioning), to maintain the environment temperature at around 25 degrees Celsius; and the ground to bear ability is strong, after 3 months storage should be charged.（The place where the battery installated should be safe and stable, and the battery should be charged once every 3 months stocked