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sealed maintenance free batteries, smf batteries
manufacturer, indian smf battery supplier, battery manufacturer, smf battery
distributor, smf battery exporter, komatsoo batteries |
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SMF Battery
Sealed Maintenance Free
Battery
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| Technical Information
/ Specification |
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Battery Type
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Nominal Voltage (V)
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Nominal Capacity 20 Hr. AH
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L
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Dimensions in mm
W
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H
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Height with Terminal
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Weight Approx. In Kgs,
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Assembly Figure
Terminal
Position Type
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K-12-7.5
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7.5
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151
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65
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94
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102
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2.635
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5
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F1
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K-12-12
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12
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151
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99
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95
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100
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4.270
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5
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F1
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K-12-18
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18
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181
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76
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167
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167
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6.283
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25
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F3
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K-12-28
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12
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28
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166
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175
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125
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125
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9.794
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25
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F3
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K-12-45
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45
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198
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166
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171
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171
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14.109
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25
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F4
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K-12-65
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65
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350
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166
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174
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174
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23.550
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25
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F4
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K-12-100
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100
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406
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172
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210
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244
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37.510
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20
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F5
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| Terminal Type & Terminal
Position |
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| Battery Characteristics
Charts |
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Discharge current and final discharge
voltage
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Discharge Current (A)
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Final Discharge Voltage (V/cell)
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0.2C 
(A)
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1.75
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0.2C
(A) < 0.5C
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1.70
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0.2C
(A) < 1.0C
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1.55
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(A) 
1.0C
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1.30
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| Charge Method |
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Dependable performance and long service life of Komatsoo
batteries depend on correct charging. Faulty procedures
or inadequate charging equipment result in decreased
battery life and/or unsatisfactory performance. Any
of the conventional charging techniques may be used,
but to obtain maximum service life and capacity, along
with acceptable recharge time, constant current and
voltage charging is recommended.
A charge quantity of 110-120% of the previous discharge
quantity is needed to fully charge the battery. The
charging voltage of battery decreases with increasing
temperature and increases with decreasing temperature.
At temperature below 5°C, the temperature compensation
for charge voltage is necessary.
Overcharging should be avoided. As a result of too high
a charge voltage, excessive current will flow after
reaching full charge causing decomposition of water
in the electrolyte and hence, premature aging and loss
of AH capacity, Undercharging should also be avoided.
If too low a charge voltage is applied, the charger
current output will essentially stop before the battery
is fully charged, This allows some of the lead sulphate
to remain on the plates, which will eventually reduce
AH capacity. The inital current limit must be within
0.1C to 0.3C.
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Application
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Standby Use
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Cycle Use
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Charge method
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Constant Voltage
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Setting voltage (v/cell)
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2.25-2.30
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2.40-2.50
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Temperature factor
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-3.3mV/°C/Cell
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-5.0mV/°C/cell
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Max. Charge current (CA)
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0.3
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0.3
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Charge
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Discharge 100%
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Time, 20°C
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Discharge 50%
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24 h
20h
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16 h
10 h
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Temperature
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0 to 40 °C
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Recommended Recharging Interval &
Method
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Storage Temperature
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Recharge Interval & Method
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below 20°C (68°F)
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6 months, charge for 16-24 hrs.
at 2.3V/cell
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21°C - 30°C (69.8°F
- 86°F)
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3 months, charge for 5-8 hrs.
at 2.4V/cell
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above 30°C (86°F), but
suggest avoid storing at
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1 month, charge for 5-8 hrs. at
0.05 CA
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temperatures above 30°C
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Handling Instructions
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- Don't short the terminals
- Don't place the battery near or in fire
- Don't use the battery in a container or bag
without proper ventilation.
- Operate at a temperature between 15°C
to 50°C. But use at cyclic service, 5°C
to 35°C range is recommended.
- To properly store the battery, remove from
equipment or charger and store in a dry and
cool place.
- Immediately recharge after discharging.
- If sulphuric acid from the battery is spilled
on skin or clothing, wash immediately with water.
If acid comes in contact with eyes, wash with
large amounts of water and immediately see a
doctor.
- To obtain maximum life, the R.M.S. ripple
current should be regulated to less than 0.1C(A)
- Avoid mixed use of batteries. Different capacities,
manufacturing lots, or manufacturers may cause
damage to the battery or other equipment.
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