RITAR RA Series User manual

R A
RITAR INTERNATIONNAL GROUP LIMITED
Technical Manual
RA Series VRLA Battery

In order to install and use RA series battery correctly and safely, please read this technical manual and other data together
with battery carefully for a comprehensive understanding.
Prolegomenon
★Pay attention to safety during installation to avoid accident.
★It is required for users to read this manual carefully and keep it well.
★If you have any questions about the Technical Manual or any technical problems, please contact us or our local agent.
Dangerous!
High Voltage……
Don't touch any terminals or connectors
without insulation to avoid electric shock.
Eyes Protection:
Gas from explosion may harm eyes
or even cause blindness.
Prohibition:
Sparks, fire and
smoking.
Vitriol:
May cause blindness
or severe burns.
Wash eyes with clean water immediately
and go to see a doctor.
Do not loosen the safety vales.
Please read carefully the installing and using instructions in this manual.
Keep the battery in a well ventilated environment when in operation.
Battery maintenance and repair should be conducted by experienced technicians.
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Check
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Storage before Installation
This manual is applied to RITAR RA series VRLA batteries (hereafter referred to as battery).
1. After receiving the batteries, please check the packing and make sure the batteries are intact. Avoid bumping during
carrying, and be careful when open the cartons.
2.Please open the cartons near the installation place and check appearance and quantity of the battery accessories after
opening.
3. It's difficult to detect leakage if there are slight damages on the battery shell. Please check carefully and make sure
there is no damage or leakage on the battery shell.
4. If the battery falls to the ground or its shell is bumped abnormally, please report the details to our company for
confirmation and aftermath arrangement.
1.Storage Environment
2.Storage Time
If the battery is not installed immediately after being received, please store it in a clean, ventilated and dark place at
around 5~30℃.
Due to self-discharge, the battery capacity will lose gradually in storage. Do not store the battery
for more than 12 months or it will affect the battery performance eternally. After being stored for 6 months, the battery
should be equalizing charged in voltage of 2.46/cell ± 0.1V for 24 hours and hereafter should be recharged at least
once every 6 months. A relatively high temperature will accelerate the battery self-discharge; from 20℃ when the
temperature increases every 10℃, recharging interval should be reduced half. For example, when the battery is stored
at 35℃, its initial charging and recharging interval should be 3 months. If the battery is not recharged properly, its
performance and life will be affected and the normal guarantee will become invalid.
Battery Features
1.Long Service Life
Heavy duty lead-calcium grids ensure mild corrosion and enable a long designed floating life over 12 years.

4Installation Cautions
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1. Operating environment: no open flames, sparkles, or heating sources, etc. Please put batteries in a well ventilated
place out of direct sunlight and avoid closed environment. Do not install batteries in any place that is possible to be
immersed by water. Recommended environment temperature is 25±5℃.
2. Before touching the battery, please wear a rubber apron, rubber gloves, safety goggles or other eyes protection
equipments; do not wear metal objects, such as jewelry etc.
3. The battery is very heavy. Be careful and do not pump the battery when moving it.
4. Smoking or lighting fires are strictly forbidden. Keep the battery away from electric arc.
5. Avoid short circuit. The battery has been charged and please prevent battery from short circuit to avoid equipment
damage or personal injury.
6. Fix the bolts and nuts on the connection terminals of the battery to the specified torque; otherwise it may cause
sparks or damages to the terminals.
7. Please clean the battery shell and cover with a damp cloth; to prevent static and spark, do not use a duster or a dry
cloth to clean the battery. It's prohibited to use organic solvent such as rubber solution or naphtha, which will cause
the battery shell cracking.
8. In normal operation, there is no dissociative electrolyte attached on the shell since the battery gets fully sealed.
However, if the battery shell is damaged, dissociative vitriol is possible to leak. In case electrolyte splashes onto
eyes, skin or clothes, flush it with a large quantity of water. If it splashes into eyes, after rinsing with water, please go
to see a doctor promptly.
9. Make sure the positive（+/red） and negative（-/black）terminals are connected properly, otherwise it will cause fire
or damages to the battery or charger.
10. Please use the following protection equipments when you carry, install and maintain batteries.
1）Safety goggles or protective face-shield;
2）Acid-resistant gloves;
3）Acid-resistant apron, safety shoes;
4）Proper carrying instruments;
5）Insulation instruments.
11. Battery poles, terminals and accessories contain lead or lead compounds; lead and some other chemical
substances in battery are harmful to human body.
5Battery Installation
1. Install the battery according to installation drawing.
Please leave at least 700mm passageway as maintenance space.
2. Install Connectors
Before connection, clean battery terminals to metallic shining. Apply the Vaseline onto battery terminals to prevent
large resistance oxide; then install connectors. After installing all battery connectors, make sure all positive（+/red）
2.Excellent and High Efficient Charge/Discharge
3.Sextuple Sealed Construction
4.Low Self Discharge
5. Easy to Install and Use
RITAR batteries are equipped with low resistant plates and conducting parts, which decrease the
internal resistance and ensure the highest discharging efficiency.
Valve regulated sealed construction and sextuple strengthened sealing on terminals and posts prevents electrolyte
leakage, and guarantee the air tight and liquid tight state of batteries in normal operation and prevent external air from
entering battery inner.
Because of the use of lead-calcium grids alloy, RITAR batteries have low self discharge and reliable performance. In
room temperature, self discharge ratio per month of RITAR battery is about 3% of the battery capacity.
It’s easy and convenient to install and the whole battery group has good looking visual. The battery meets the
requirements of level 9 shock resistance.

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6Working Principle
Notice:
1. RA series batteries are starved electrolyte batteries and shall not be inverted.
Vertical Inverted
2. The battery bank must be of the same brand and model.
3. New and old batteries shall be separated and cannot be mixed or used together.
4. The quantity of parallel connection battery banks shall not be more than 4.
5. When batteries are in parallel connection, the connection resistance should be equal.
6. Do not use gasoline or organic solvent to clean the battery.
1.Electrochemistry
A lead-acid battery is an electrical storage device that converts electrical energy into potential chemical energy; when
needed the stored chemical energy can be converted back into electrical energy again to be supplied to external
systems. In the discharge state, part of PbO at the positive turns into PbSO , and part of Pb at the negative also turns
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into PbSO4. In this electro-chemical reaction, both positive and negative electrodes generate PbSO . In the charging
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state, the lead sulfate(PbSO ) at the positive and negative turns into PbO and Pb, respectively. When in discharging,
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the concentration and density of H SO decreases gradually; while in charging, it increases. Battery charging and
2 4
discharging are realized by electrochemical reactions.
2. Oxygen Combination
The positive plate generates oxygen gas in the final stage of charging. Under the condition of excessive additives at
the negative, oxygen spreads to the negative plates through PE compound separator and reacts with spongy lead
and forms lead oxide and then turns into lead sulfate and water. Keep the negative plates in depolarization or under
charge state so that the battery cannot reach the over potential of oxygen gassing. Thus the battery avoids oxygen
gassing and water loss and is made a maintenance free sealed storage battery.
and negative（-/black）terminals are connected properly according to the installation figures; Then tighten the
connecting screws in the specified torque with an insulative moment spanner (M5:6~7 N*m; M6:8~10N*m;
M8:10~12N*m); as for plug type terminals, just plug in and out directly.
3. Measure Voltage
After installing the connectors, measure the terminal voltage of the whole battery bank, which should be about the
total of the cell voltage of series batteries. If they are inconsistent, please check the battery polarity and recheck the
battery connection in a proper torque.
4. Cell Number
Stick the self-adhesive labels of cell number and system polarity sign at prominent position of relevant cells.
The first cell at the positive connecting terminal should be marked as No.1 and the rest is marked by analogy.
5. Install Battery Shield
After checking the voltage and arranging the cell numbers, put the shield at the top of the batteries.
6. Safety Warning
After completion of battery installation, danger warning should be posted at prominent position to prevent safety
accidents.

7Record
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The operating record of stationary batteries is very important for battery maintenance and protection. This information is
useful for users to confirm battery life and adjust the longevity.
Battery is allowed to operate at a temperature lower than 25℃, however, the charging time will be relatively long. After
installing batteries and a week of float charge, it's required to record the following information:
1）Battery terminal voltage
2）Charger voltage
3) Float charging voltage of each battery
4）Internal resistance of each battery. Within the same battery, put the meter that tests internal resistance at the two
terminals that is in farthest diagonal position.
5）Environment temperature
6) Check if all the connecting points have been fixed to the proper torque (refer to specifications). Use a milliohmmeter to
test internal resistance of each connecting strip. Conduct the test according to the probe potion on the instruction manual.
If the data exceeds 20% of its range of installation, please retighten the screws. If the data still remains high, please wipe
terminals and the interface between terminals and connecting strips.
Put on a mask or a pair of protective glasses when approach batteries, make sure not put batteries next to fire/ smoking
place.
Proper maintenance can prolong battery life and help it meet the design requirements. A good battery maintenance
program can help to judge when battery need to be replaced. If the maintenance way differs from this manual, users can
make the maintenance program according to battery usage and using reliability. All maintenance needs to be executed by
professionals.
8Maintenance
(lead sulfate→sponge lead) (lead sulfate→dioxide alumina)
（water → sulfuric acid, proportion rise）（ → , proportion decrease）sulfuric acid water
(sponge lead→lead sulfate) (dioxide alumina→lead sulfate)

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1．Inspection
Try to make all inspection under float charging conditions. Inspection should be conducted according to instruction
manual from the supplier and record all test data for future collation.
1．1 Monthly inspection
General inspection items and record of every month are as follows：
1．1．1 Float charging voltage of all batteries.
1．1．2 Output current and voltage of charger.
1．1．3 Ambient temperature, ventilation and monitor equipments.
1．1．4 Visual inspection of battery bank appearance:
1）Inspect battery appearance: Check whether there is corrosive phenomenon on terminals, connectors, battery racks.
2）Clean batteries, racks and battery region.
3）Inspect whether there is crack or leakage on battery.
4）Inspect whether there is deformation of battery and rack.
1．2 Quarterly inspection
Quarterly inspection includes the following items; please record all the inspection data. ( Need to collate with previous
records.）
1） Internal resistance of each battery cell;
2） Temperature on negative terminals of each battery cell;
3） Inspect connect resistance at random ( at least check 10% or 6 connectors), if resistance is significantly higher than
the initial value, then need to check all connectors' resistance and dig out reason. (Notice: Please inspect different
connectors every quarter.)
1.3 Yearly inspection and initial inspection
For Yearly inspection and initial inspection, conduct the following checking and record items.
1）Check and record internal resistance of all connectors;
2）Try to check AC current and voltage from rectifier.
1.4 Special inspection
Batteries need inspection to check if they get damaged in special situations (such as over-discharge, abuse
use due to charging machine failure, etc). The inspection includes all yearly checking items and needs to make
records.
2. Ripple Voltage of rectifier
We recommend ripple Voltage of rectifier should not be bigger than 0.5% of charging voltage, and librating
ripple time should be shorter than 8 millisecond.
3. Battery cleaning
Use cloth soaked in water or carbonic acid water to clear battery and cover.
4. Capacity test
If batteries work properly, no need to check capacity. Check capacity only when battery capacity is in doubt.
When battery is in discharge, the cut-off voltage should not be lower than the requirement in the technical
manual.
Before capacity testing, make sure battery get fully charged for more than 48 hours under float charge, if not,
make a equalization charge for 24 hours. Let batteries rest and cool down for 8-24 hours and then conduct
capacity test.
5. Battery replacement
1）In regular battery check discharge, if capacity cannot meet the using requirements, should consider to
replace the battery;
2）Batteries are consumable and have certain life cycle. In comprehensive consideration of the use of
conditions, environmental temperature and other factors, before reaching the battery design service life,
replace it with good battery to fully ensure the safe, reliable and normal operation of the power system. The
replaced old battery should be recycled in accordance with the relevant national laws and regulations.

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9Common Faults & Solutions
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No. Common Faults Solutions
Acid leakage Please contact the supplier for solutions.
Crack
Low floating voltage of single cell
High temperature on
battery pole and cell
Abnormal Appearance
Grounding Fault
Abnormal connect & inner resistance
Please contact the supplier for solutions.
After 24-48hrs equalization charger, still low,
p .lease contact the supplier for solutions
Check whether the connection is good,
inspect charger, ventilation and charging current.
Clean dust, and check leakage or ground faulty.
The battery bank shall be insulated from the ground.
Please contact the supplier for solutions.
Check whether the connection is good,
inspect charger, ventilation and charging current.