Valve Regulated Lead Acid Batteries
AGM FRONT ACCESS
12 years Long Life sealed Batteries
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| CSB Sealed Lead Acid Battery http://www.csb-battery.com/english/01_product/00_overview.php |
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BATTERIES KNOWLEDGE AND INFORMATION
What is
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How many
classes of batteries are there:
1- Primary Batteries : are those which can be used only once and cannot be recharged for reusev Eg: Dry cell used for radio and Torch . 2. Secondary Batteries: are those which can be recharged to its original condition for a limited number of cycles. Eg: Lead acid Batteries, VRLA batteries, Nicd etc. |
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What is Lead
Acid Batteries: Lead Acid Batery
consist of Lead oxide (PbO2) as positive and spongy lead (Pb) as negative
with electrolyte Acid (diluted H2SO4) and generates 2.4V per Cell.
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How are
Batteries rated : The most common
battery rating is the AMP-HOUR RATING. This is a unit of measurement for battery capacity,
obtained by multiplying a current flow in amperes by the time in hours of
discharge. (Example: A battery which delivers 5 amperes for 20 hours delivers
5 amperes times 20 hours, or 100 ampere-hours.) Manufacturers use different
discharge periods to yield a different Amp-Hr. Rating for the same capacity
batteries, therefore, the Amp-Hr.
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What is
voltage: It is the units of force
or pressure of electric current or unit of measuring electrical pressure, all
batteries is rated in volts DC (Direct Current). The voltage of a battery
depends on the number of cells connected in series each cell of lead acid
battery has 2 volt nominally.
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What is
electrolyte : In a lead-acid
battery, the electrolyte is sulfuric acid diluted with water. It is a
conductor that supplies water and sulfate for the electrochemical reaction:
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What is
specific Gravity : The weight of
the sulfuric acid electrolyte compared to water (Sp Gr of water is 1). The
Specific gravity is a measure of state of health of a battery.
1-Absorb relatively small power surges. 2-Smooth out noisy power sources. 3-Continue to provide power to equipment during line sags. 4-Provide power for some time after a blackout has occurred. In addition, some UPS or Online UPS/software combinations provide the following functions: 1-Automatic shutdown of equipment during long power outages. 2-Monitoring and logging of the status of the power supply. 3-Display the Voltage/Current draw of the equipment. 4-Restart equipment after a long power outage. 5-Display the voltage currently on the line. Provide alarms on certain error conditions. Provide short circuit protection |
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What is cutt
off voltage of discharge or end voltage :
Terminal voltage of a
battery at which discharge should be finished or stopped. Generally 10.5 volt
is considered as safe end voltage for lead acid battery.
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What it watts
: A WATT is the unit for measuring
electrical power, i.e., the rate of doing work, in moving electrons by, or
against, an electrical potential. Formula:
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What is battery
cycle life: One cycle of a battery
is a discharge from full charge to full discharge and a return to full charge
again. The total number of cycles a battery can perform before failure is
called its Cycle Life.
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What is the
shelf life of battery : All batteries
by virtue of nature will have some self-discharge. If the capacity loss due
to self-discharge is not compensated for by recharging, the battery capacity
may become unrecoverable and battery will not give expected useful life or
normal cycle life.
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What Is a Starting
Or SLI Or Automotive
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What Should I
Consider When Buying A Automotive
POWER: What is the AH rating, CCA and RC required to power your vehicle? WARRANTY: Batteries are backed by a warranty package. Choose what is right for your vehicle's needs. |
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What Is The
Reserve Capacity Rating (RC)?
The reserve capacity of a battery is defined as the number of minutes that it can support a 25 ampere load at 80°F until its terminal voltage drops to 1.75 volts per cell or 10.50 volts for a 12V battery. Thus a 12V battery that has a reserve capacity rating of 100 signifies that it can be discharged at 25 amps for 100 minutes at 80°F before its voltage drops to 10.75 volts. |
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What Is The
CCA Rating?
The cold cranking ampere (CCA) rating refers to the number of amperes a battery can support for 30 seconds at a temperature of 0°F until the battery voltage drops to 1.20 volts per cell, or 7.20 volts for a 12V battery. Thus, a 12V battery that carries a rating of 600 CCA tells us that the battery will provide 600 amperes for 30 seconds at 0°F before the voltage falls to 7.20V. |
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Can I
Increase The Life Of My
Keeping your battery well maintained is the BEST way to extend the life of your battery. Maintaining the correct electrolyte levels, tightening loose hold-down clamps and terminals, and removing corrosion are normally the ONLY preventative maintenance required for a battery. |
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What Are The
Most Common Causes Of
A. Using an undersized battery. B. Loss of electrolyte due to heat or overcharging C. Overcharging with voltages greater than 15.1 volts D. Undercharging E. Old age F. Vibration G. Deep discharges (leaving your lights on) H. Using tap water ……I. Corrosion J. Freezing, and K. Overheating. |
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What is
Sulfation?
Growth of lead sulfate crystals in Lead-Acid batteries which inhibits or resist current flow. Sulfation is caused by storage at low state of charge or when the battery has been left for a considerable time in a discharged condition. |
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What is the
normal charge rate for a battery?
Naturally, batteries of different capacities require different charge rates. Generally, a battery should be charged at a slow charge rate of 1/10 its rated capacity. . For example a 100 amp/hour battery (100 @ 20 hour rate) will require an initial startup rate of 10 amps to be supplied by the selected battery charger or UPS. |
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What's The
Difference Between A Car Battery And A Deep Cycle
The difference between car batteries and deep cycle batteries is the way their lead plates are structured and designed. The plates determine how the battery functions. Deep cycle batteries have thick, solid lead plates meant to handle deep discharge so the battery can provide power for a long time but at low amps. Car batteries have thin plates that provide greater surface area to generate big amps for short periods for cranking application. |
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What is
Industrial
Valve Regulated Lead Acid (VRLA) is designed to provide a constant output power to the UPS. These are totally maintenance free and don't have free acid, thus can be used in any position. It is designed using Absorbed Glass Mat (AGM) or GEL technology and can sustain deep cycle application. These batteries emit very less gas fumes during usage and hence can be used in living area. These batteries are sensitive for High temperature, High/low charging, hence to be used with precaution and maintain the ambient temperature and charging parameters should be under the specified limits. |
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What is
Inverter
These batteries have been constructed to provide longer backup and quick re charging, it contains free acid and needs to be maintained properly. The plates are thicker when compared to automotive batteries and capable of deep cycle application. Application of these batteries is for Inverter/Home UPS. |
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What is
Tubular Batteries ?
These batteries are similar to Invert type except to that the Positive plate is in Tube construction. These batteries offer high life when compared to other types of batteries. Application of these batteries depends on its construction and generally used in Inverter and UPS. |
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What is VRLA
VRLA is Valve-Regulated Lead-Acid Battery and is the designation for maintenance-free lead-acid batteries. The VRLA technology is based on "recombinant principle of oxygen". The name "valve regulated" does not wholly describe the technology; these are really "recombinant" batteries, which means that the oxygen evolved at the positive plates will largely recombine with the hydrogen ready to evolve on the negative plates, creating water--thus preventing water loss. The "valve" is strictly a safety feature in case the rate of hydrogen evolution becomes dangerously high. |
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Explanation
Application and Type of battery to be used?
Although a number of basic materials are used to produce all types of lead-acid batteries are same, significant differences exist among battery types in both materials and design. Batteries are built to satisfy specific application-based demands. Each particular duty cycle prescribes its own design, materials and methods of construction. Refer to below table for selecting right battery for right application. |
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Application
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Recommended
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Vehicle
starting, Generators
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Automotive batteries
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Inverter
for Lights, Fans, TV, Electrical goods
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Inverter
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UPS for Computer, Printer,
Electronic devices for emergency backup, environment friendly and maintenance
free
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VRLA /
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UPS for Computer, Printer
for Long backup and installed in separate room and low maintenance
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Tubular Batteries
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Can I use tap
water for topping up batteries? if not Yes, why?
Tap water or any other water available in nature cannot be used for topping up of battery. DM water or De-ionized water is the most common or suggested type of water suitable for topping-up. The mineral content in tap water or natural available water may be minimal in some water, but the gassing effects from charging coupled with evaporation, may leave behind mineral contaminates in the electrolyte solution in higher level. As a result, the minerals will have a cumulative effect inside the battery. Depending on the type of impurity, the physical characteristics as well as the performance of the battery may be affected and fail premature. |
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Do I ever
need to add acid to my battery?
Under normal operating conditions, you never need to add acid. For a standard auto or inverter or tubular battery, only distilled, deionized water should be added to achieve the recommended levels (Max-Min). |
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What is
Inverter or Home UPS?
An inverter takes DC power (battery for example) and converts it into AC "household" power for running electronic equipment and appliances. It basically inverts the DC power to AC power suitable to power electronic/electrical equipment. |
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What is UPS
or UN Interrupted Power supply?
UPS is similar to Inverter except to the fact that the Input voltage is monitored and controlled to some extent (using filter circuit, Voltage regulator) and then fed to the output. The change over time is fast between 0 to 15 milliseconds. |
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What is the
basic Difference between Inverter and UPS?
Basic and major difference between Inverter and UPS is Inverter takes long time between changeover from Mains to |
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What can
cause a new battery to fail soon after installation?
If a new battery becomes unserviceable within a few days or weeks after its installation it may be due one or more of the following reasons: 1. A faulty charging system. 2. A short circuit in the electrical system. 3. 4. Excessive ignition off drains or high parasitic drains. 5. Electrical capacity or AH of the battery is insufficient for size of the vehicle. |
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What is an
Equalization Charge & Why it is Necessary?
Individual batteries and individual cells within lead acid batteries react differently in field, over time battery performance will drop as differences become more pronounced. In any cyclic application, a series of batteries will always need to be equalized from time to time in order to ensure that the battery cells remain at the same voltage throughout its life time equalization charge is an essential exercise. Equalization charge is performed when the range of voltages across the battery bank's batteries is over 0.30 volts or at least once in every 3 month. An equalization charge must only be performed on vented (not sealed or VRLA) wet or flooded lead acid batteries. Equalization is done by allowing the charging voltage to rise above normal finish or TOC (generally >=16 V) while allowing a considerable constant current for prolong period to the batteries in order to allow the weaker cell to draw more current. |
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What is
"cycle use" and "standby use"?
"Cycle Use" - direct power source: It can provide the power supply to power tools, portable electronic products. It can also be used for cycling charging and discharging usage such as electronics motorbike or vacuum cleaner. "Standby Use" - back up power: Mainly used for emergency power to avoid future damage that may be caused by a sudden power outage |
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Are batteries
dangerous for the environment? How much of it can be recycled?
Batteries are made of lead, sulphuric acid solution and polyprolene box. This is why once the batteries can no longer be used; they become dangerous waste, risky for the environment. However, with an effective recycling system the battery's polyproloene box and the lead parts can be fully recycled. Although it is also possible to recycle sulphuric acid, it is mostly neutralised.. |
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Where do I
recycle my old batteries?
Old batteries may be returned to the battery retailer, automotive service station, a battery manufacturer or other authorized collection centers for recycling. |
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Does
overcharging cause damage?
Overcharging occurs when the total capacity removed has been replaced by recharging and the battery remains on charge. This overcharging creates excessive heat that can cause the battery plates within the cells to buckle and shed their active material. The battery will react to the overcharge by producing an excessive amount of hydrogen and oxygen. These gases are the result of the breakdown of the water molecules within the electrolyte. The water that has been displaced by overcharging can be replaced in a serviceable (non-sealed) battery, but, in the maintenance-free sealed batteries, permanent capacity loss will result. |
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How do i jump
start my car?
Turn off all unnecessary accessories and lights on both cars. Start the car with the good battery and let it run for at least two or three minutes at fast idle BEFORE attempting to start the disabled car. Connect the POSITIVE . (Usually marked with red colour or +symbol) terminal on the disabled battery to the POSITIVE terminal on the good battery. Connect the NEGATIVE (Usually marked with black colour or – symbol) terminal on the good battery to a clean, unpainted area on the ENGINE BLOCK on the disabled car. Let the good car to continue to run for five minutes or more. This will allow the dead battery to receive some charge and to warm its electrolyte. Be sure that cables are clear of fan blades, belts and other moving parts of both engines Start the disabled car and allow running at fast idle. Disconnect the jumper cables in the reverse order, starting with the ENGINE BLOCK on the disable car. |
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How long will
my battery last?
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