EnerSys FRONT TERMINAL Series User manual

Installation, Operation
and Maintenance Manual
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Sup T
FRONT TERMINAL SERIES
2V DIN-SIZE SERIES

The maximum storage times before a refresh charge is required and
recommended open circuit voltage audit intervals are:
Monoblocs and cells must be given a refresh charge when the OCV
approaches the equivalent of 2.10 Volts per cell or when the maximum
storage time is reached, whichever occurs first.
2.2. Refresh Charge
Charge the monoblocs / cells or strings at a constant voltage equivalent to 2.29 -
2.40Vpc with a minimum 0.1C10 Amps available for a period of 24 hours.
2.3. Commissioning Charge
Before commencing operation, the battery must be given a commissioning
charge. The batteries should be charged using constant voltage with a
minimum charge current of 0.1C10 Amps with no load connected to the
battery. Either of the following methods can be used:
• Charge for 96 hours at the recommended float voltage of 2.29Vpc at
20°C or
• Charge for 24 hours at the recommended boost charge voltage
of 2.40Vpc at 20°C. The battery will then be switched over to float
charging, maintaining the battery under floating voltage for 24 hours
before any discharge test.
3. Battery Location
The battery compartment/room must have adequate ventilation to limit
hydrogen accumulation. Batteries must be installed in accordance with the
EN 50272-2 standard and any other local/national laws and regulations.
2
Handling
SuperSafe®T FrontTerminal and 2 volt DIN-size
batteries are supplied in a charged condition and are
capable of extremely high short circuit currents.Take
care to avoid short-circuiting terminals of opposite
polarity.
Important
Please read this manual immediately on receipt of the battery before unpacking and installing. Failure to comply with these instructions will render any
warranties null and void.
Care for your safety
2
Keep flames away
In case of accidental overcharge a flammable gas
can leak off the safety vent.
Discharge any possible static electricity from clothes
by touching an earth connected part.
Tools
Use tools with insulated handles.
Do not place or drop metal objects on the battery.
Remove rings, wristwatch and articles of clothing
with metal parts that may come into contact with
the battery terminals.
No smoking, no naked flames, no sparks Shield eyes Read instructions
Electrical hazard Danger Recycle scrap batteries.
Contains lead
Electrolyte is corrosive
Clean all acid splash in eyes or on
skin with plenty of clean water.
Then seek medical help.
Acid on clothing is to be washed
with water
Warning: Risk of fire, explosion, or
burns. Do not disassemble, heat above
60°C, or incinerate. Avoid any short
circuit. Metallic parts under voltage on
the battery, do not place tools or items
on top of the battery
Temperature (°C / °F) StorageTime (Months) OCV Audit Intervals (Months)
+10 / +50 48 12
+15 / +59 34 12
+20 / +68 24 12
+25 / +77 17 6
+30 / +86 12 6
+35 / +95 8.5 3
+40 / +104 6 3
1. Receiving
Upon the receipt of the shipment, check the contents for damage and
against the packing slip. Immediately inform EnerSys of any damaged
or missing items. EnerSys®is not responsible for shipment damage or
shortages that the receiver does not report to the carrier.
2. Storage
2.1. Storage Conditions andTime
If a battery cannot be immediately installed it should be stored in a clean,
cool and dry area. During storage monoblocs / cells lose capacity through
self-discharge. High temperatures increase the rate of self-discharge and
reduce the storage life.
The chart below shows the relationship between open-circuit voltage (OCV)
and storage time at various temperatures.
California Proposition 65Warning - Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to
cause cancer and reproductive harm. Wash hands after handling.
ENGLISH
SuperSafe®T
FRONT TERMINAL AND 2V DIN-SIZE SERIES

3
4. Installation
Whatever your application, SuperSafe®T FrontTerminal and 2 volt DIN-size
batteries can be mounted in any orientation except inverted. However, in
cyclic applications, EnerSys recommend to install 2 volt DIN-size cells in
horizontal orientation. In such configuration the instructions below must be
complied with.
• Do not use terminal posts to lift or handle cells.
• Do not install the cells in such a way that the box-lid bond is resting on
a runner.
• Always ensure that the arrow on the lid of each unit is pointing in
vertical orientation.
Each monobloc / cell is supplied with the terminal/connector fasteners.
On each monobloc / cell the positive terminal is identified by a “+” symbol.
Install the batteries in accordance with the instructions and/or layout
drawing, taking care to ensure correct terminal location and polarity.
Connect the blocs / cells with the connectors and fasteners provided. The
fastener torque value is indicated on the product label.
Place the insulating covers in position immediately after tightening the
fasteners.
5. Operation
The battery will give the best performance and service life when working at
a temperature of 20°C.The maximum operating temperature range is -30°C
to +45°C.
5.1. Standby / Float Operation
Constant voltage chargers are recommended.The charging voltage should
be set at the equivalent of 2.29Vpc at 20°C / 68°F or 2.27Vpc at 25°C /
77°F. The minimum charging voltage, at any temperature, is 2.21Vpc. The
recommended float voltage temperature compensation is as follows:
5.2. Charging Current
Due to the very low internal resistance SuperSafeT Front Terminal and 2 volt
DIN-size batteries will accept unlimited current during recharge but for cost
and practical purposes in float applications where recharge time to repeat
duty is not critical, the rectifier current can be limited to the load plus 0.1C10
Amps.
5.3. Grid Assist Cycling Applications
In instances where the time to repeat duty is critical the charge voltage
should be set to 2.40Vpc at 20°C, with the rectifier current limit set to a
minimum of 0.1C10 Amps. Fast charge should be stopped and reverted to
float voltage once full state of charge is reached. Further details can be
found in our application guide.
5.4. Periodic Boost Charge
In normal operation a periodic boost charge is not required. However, in
some cases such as when there has been no discharge duty over a 12
month period, a boost charge equivalent to 2.40Vpc at 20°C for maximum of
10 hours can be applied.
5.5. Discharging
Batteries must not be left in a discharged condition after supplying the load
but must immediately return to recharge mode.
Failure to observe these conditions may result in greatly reduced service life.
Accidental deep discharging
For optimum operation the minimum voltage of the system should be
related to the duty as follows:
In order to protect the battery it is advisable to have system monitoring and
low voltage cut-out.
Deep discharge will produce a premature deterioration of the battery and a
noticeable reduction in the life expectancy of the battery.
Effect of temperature
Correction factors of the capacity, according to the temperature are
illustrated in the performance datasheet.
Operation of valve regulated batteries at temperatures higher than 20°C
will reduce life expectancy. Life is reduced by 50% for every 10°C rise in
temperature.
6. Maintenance
In practice, the user usually specifies the maintenance schedule based on
site criticality, location and manpower.
However, the following may be used as a suggested maintenance schedule.
• Monthly (record all readings)
- Measure the battery string voltage. If necessary, adjust the float
voltage to the correct value.
- Check the ambient temperature in the immediate environment.
• Every six months (record all readings)
- Measure the battery string voltage. If necessary, adjust the float
voltage to the correct value.
- Measure individual bloc / cell voltages. After 6 months of operation
blocs / cells should be within 5% of the average voltage value.
- Check the ambient temperature in the immediate environment.
- Inspect for contamination by dust, lose or corroded connections.
If necessary, isolate the string/bloc/cell and clean with a damp
soft cloth. Warning: Do NOT use any type of oil, solvent, detergent,
petroleum-based solvent or ammonia solution to clean the battery
containers or lids. These materials will cause permanent damage
to the battery container and lid and will invalidate the warranty.
Keep a logbook to record values, power outages, discharge tests, etc. An
autonomy check can be done once a year.
Contact EnerSys®if you have any questions regarding maintenance.
7. Disposal
SuperSafe®T FrontTerminal and 2 volt DIN-size batteries are recyclable. Scrap
batteries must be packaged and transported in accordance with prevailing
transportation rules and regulations.
Scrap batteries must be disposed of in compliance with local and national
laws by a licensed or certified lead acid battery recycler.
Sup
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Temperature (°C / °F)
10/50 15/59 20/68 25/77 30/86 35/95 40/104
Recommended 2.33 2.31 2.29 2.27 2.25 2.23 2.21
Minimum 2.31 2.29 2.27 2.25 2.23 2.21 2.21
Duty Minimum end voltage
5 min ≤ t ≤ 1h 1.65V
1h ≤ t ≤ 5h 1.70V
5h ≤ t ≤ 8h 1.75V
8h ≤ t ≤ 20h 1.80V

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PA 19605, USA
Tel: [phone] /
[phone]
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Gateway East Building #11-03,
Singapore 189721
Tel: [phone]
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Publication No. APAC-EN-IOM-SS-VFT&T2V-I001-SEE1556-0817
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