BV Batteries 2V Series Manual

1 | P a g e
INSTALLATION AND MAINTENANCE MANUAL
VALVE REGULATED LEAD ACID BATTERY BAG 2V SERIES
I. Shipping and Storage
(1) Do not place battery upside-down, and
avoid collision, in case battery may be broken.
(2) Do not touch terminal and safety
valve when handling batteries.
(3) Short circuit of the battery is strictly
forbidden because it is fully charged and filled
with acid.
(4) Storage temperature should range
between 0 - 35°C, direct sun light should be
avoided. If the storage temperature is too
high, big battery self-discharge may occur.
(5) To avoid poor performance, the
storage time should not exceed 6 months
when the temperature is 25°C, and should be
shortened at higher temperature. Battery
stored for more than 6 months has to be re-
charged to ensure its good performance.
Storage room should be kept clean, dry and
with good ventilation.
II. Installation
1. Unpacking and inspection
When unpacking, please check the battery for
possible damage and missing components.
Please carefully read this manual and the
connection drawing before installation.
2. Installation procedure and method
(1) Select proper installing position: The
battery blocks should keep away from the fire,
source of heat, and transformer, power
switches, and fuses which are easy to have
sparks. The operating room should have good
air circulation, and be easy for heat diffusion.
To ensure the best work performance of the
battery, the ambient temperature should be
controlled between 20°C to 25°C.
(2) Battery racks and cabinets should be
fixed on the floor, (these racks and cabinets
can be designed according to customer's
requirement.), but the battery in bulks should
be assembled accordingly.
(3) Please refer to the attached
connection drawing before installing the
battery into the racks or cabinet, and connect
them with copper bar or cable. Before
connecting, the surface of terminal should be
coated with Vaseline.
(4) Check after installation
Check the fastening for tightness.
Check if the positive and negative connections
are conducted according to connection
drawing.
Check if the total battery voltage is correct.
(5) Install dustproof guard and close the
cabinet door.
3. Installation cautions
(1) Select appropriate installation scheme
as per actual installation site. Please inform
the manufacturer of installation requirement
when ordering, so as to facilitate installation.
(2) To ensure the best performance of
battery, please select proper battery room. Do
not install battery inside sealed room or
equipment, good air circulation is required.
Keep away from apparatuses which may incur
sparks or fire. Avoid direct sun light. The
battery room should not have organic solvent
or any of corrosive gas.
(3) Do not connect different batteries
together.
(4) When connecting, avoid short-circuit
of battery. Position and connect battery
according to drawings. The batteries should
be over 8 to 12mm apart, and make sure there
is adequate air circulation underneath battery.
Installation tools should be insulated. When
the total battery voltage is higher than safety
voltage, installation personnel should wear
insulated clothes in case electric shock
occurs.
(5) Connectors should be clean, shortage
of flat washer or spring washer is not allowed.
All the fastenings should be tightened, or else
sparks may occur and damage the battery,
hence affecting battery performance. Also, do
not over tighten the fastenings, which may
damage the terminal.
(6) Before connecting the battery to the
power supply or the loading equipment, check
the polarity of the cells and monoblocs to
ensure correct installation, and cut all
switches to prevent personal injuries.
(7) Never clean the battery container with
organic solvent. Use only a damp cloth to
clean the cells and monoblocs.
(8) To avoid personal injuries, do not cut
battery, as there is corrosive liquid— sulfate
acid inside cell.
(9) Always keep clean areas around
battery valve to avoid dust blocking, which
may cause accident.
III. Operation and Maintenance
1. Operating of Battery
(1) Float charging operation

INSTALLATION AND MAINTENANCE MANUAL VALVE REGULATED LEAD ACID BATTERY
2 | P a g e
The best operating condition for float charge
battery is always in fully charged state. Under
this condition, battery will obtain its longest
lifespan. When operating in float charge
condition, make sure each monobloc is
charged with a constant voltage of
2.20÷2.30Vpc. If the float charge voltage
exceeds this level, it will reduce the battery
capacity and operational service life. When
the ambient temperature is in the range 20 to
30ºC, the voltage can be adjusted with
gradient rate -3mV/ºC. We recommend the use
of constant-voltage chargers featuring
automatic voltage adjustment in accordance
with temperature.
(2) Cyclic operation
Charging parameters for cyclic operation are
listed below:
> Charging voltage: 2.4Vpc (25°C)
> Initial limited charging value: I = 0.05C
10
~
0.3C
10
> Gradient: -5mV/°C
Whether charge process is over can be judged
according to any of the following two
situations:
Generally, the charge process lasts 18 to 24
hours. However the charging time may by
shortened when the previous discharge is not
deep. For example: the charging time can be
shortened to 10 hour after 20% discharge.
During the final stage of constant charge, the
charging current remains constant for three
hours.
In discharge process, make sure the terminal
voltage is higher than the terminating voltage
(protection point), and the battery should be
charged as soon as the discharge process is
over.
2. Charging
There are 2 battery charge modes: float
charge and equalize charge. In charge
process, the charged capacity must be 1.07
times of previous discharged capacity
(1) Float charge
> Constant voltage: 2.20÷2.30Vpc (25°C),
gradient: -3mV/°C.
> Initial limited charging value: I = 0.05C
10
~
0.3C
10
(2) Equalize charge
> Constant voltage: 2.40÷2.45Vpc (25°C),
gradient: -5mV/°C.
> Initial limited charging value: I = 0.05C
10
~
0.3C
10
Equalize charge voltage is slightly
higher than float charge voltage, which can
shorten the charging time.
Equalize charge may be adopted in case of
any one of the following situations:
> Discharge more than 20% of rated
capacity
> Storage period longer than three months
> Continous float charge for three to six
months
> Voltage imbalance between cells is big in
float charge
(3) Recharge after storage
The battery is fully charged at factory
delivery. However, when the battery is stored
for a period of time, capacity loss may occur.
In this case, battery should be re-charged
before installation, with equalize charge mode
recommended. After re-charging, the battery
should be installed and put into use as soon
as possible.
3. Maintenance and cautions
(1) When the battery is operating, the
following data should be measured and
recorded monthly:
> Float voltage of each cell and monobloc
> Float current
> Total battery voltage
> Ambient temperature
> Date of measuring
(2) Check the connectors yearly for
looseness, corrosion and dirt. The loose
connector should be tightened, and the dirty
or corrosive connectors should be cleaned
immediately.
(3) Check the battery cases for leakage
and distortion, if there is any acid leakage
around the posts or safety valve, or the
temperature is unusual, find out and solve the
problem, or replace the battery.
(4) Never install battery inside sealed
containers.
(5) Battery should be charged as soon as
the discharge process is over