EnerSys DataSafe XE Series User manual

Battery Installation,
Operation and
Maintenance Manual
Visit us at www.enersys.com

No smoking, no naked flames,
no sparks
Pb
Temperature (°C/°F) Storage Time (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
Leerlaufspannung pro Zelle
Monate
Ca. % Ladezustand
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
Shield eyes Read instructions
Electrical hazard Danger Re-cycle scrap batteries.
Contains lead.
Electrolyte is highly 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.
Handling
DataSafe®XE 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.
Use caution when handling and moving batteries.
Appropriate lifting equipment must be used.
California Proposition 65 Warning – 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.
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.
Warning: Risk of fire, explosion, or burns.
Do not disassemble, heat above 60ºC, or
incinerate. Avoid any short circuit. Metallic
parts under voltage on the battery, do not
place tools or items on top of the battery.
1. Receiving
1.1. In-Transit Damage or Short Shipments
Upon receipt of the shipment, please check that the items delivered are
undamaged and match the carrier’s Bill of Lading. Report any damage or
shortages to the carrier. EnerSys®is not responsible for shipment damage
or shortages that the receiver does not report to the carrier.
1.2. Shipment Damage or Shortages
Open the shipping containers and check the contents for damage and
against the packing slip. Immediately inform EnerSys of any damaged or
missing items. EnerSys is not responsible for damaged or missing items
after a shipment has been in storage.
2. Storage
2.1. Storage Conditions and Time
If a battery cannot be installed immediately, it should be stored in a clean,
cool and dry area. During storage monoblocs 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.
Monoblocs must be given a refresh charge when bloc voltages approach
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 or strings at a constant voltage equivalent
to 2.29–2.40Vpc with 0.1C10 current 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 with no load connected
to the battery.
• Charge for 48 hours at the charge voltage of 2.30Vpc at 20ºC/68ºF
to 25ºC/77ºF.
3. Battery Location
The battery compartment/room must have adequate ventilation to limit
hydrogen accumulation to a maximum of 1% by volume of free air.
Batteries must be installed in accordance with the prevailing standards
and any other local/national laws and regulations.
The maximum storage times before a refresh charge is required and
recommended open circuit voltage audit intervals are:
MONTHS
OPEN CIRCUIT VOLTAGE PER CELL
APPROX. % STATE OF CHARGE

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
4. Installation
Install in a clean and dry area. DataSafe®XE batteries release minimal
amounts of gas during normal operation (gas recombination efficiency
≥ 95%). They can be installed near the main equipment. Batteries must
be installed in accordance with local, national and international regulations
and manufacturer’s instructions.
nTemperature
Avoid placing the battery in areas of high temperature or in direct sunlight.
The battery will give the best performance and service life when working at
a temperature between 20˚C (68˚F) and 25˚C (77˚F). The maximum operating
temperature range is -40˚C (-40˚F) to +50˚C (+113˚F).
nVentilation
Under normal conditions gas release is very low and natural ventilation
is sufficient for cooling purposes and inadvertent overcharge, enabling
DataSafe XE batteries to be used safely in offices and with main equipment.
However care must be taken to ensure adequate ventilation when placed
in cabinets. Batteries must not be placed in sealed cabinets.
nSecurity
All installation and ventilation must comply with the current local, national
and international regulations.
nMounting
Battery racks or cabinets, supplied by EnerSys®, are recommended for
proper installation. Assemble the rack according to instructions. Place the
monoblocs on the rack and arrange the positive and the negative terminals
for connection according to the wiring diagram. Check that all contact
surfaces are clean and apply the bloc connectors and the terminal screws.
Tighten the screws securely. Follow the polarity to avoid short circuiting
of blocs. Finally connect the battery terminals. It is important that the battery
is mounted firmly.
nInstallation of High Voltage Batteries
A battery consisting of 10 or more blocs connected in series presents
additional hazards and the following notes on installation should be
employed.
• During installation process, limit the battery voltage by omitting
inter-bloc connectors to give a maximum section voltage of 120V
or 10 blocs.
• The omitted inter-bloc connectors should be chosen such that they
are in an easily accessible position. These connectors should only
be fitted with the load and charger isolated and when the rest of the
installation is complete.
• Never work alone on high voltage batteries.
• Always use insulated tools and wear approved high voltage insulating
gloves.
• When supplied, fit the “high voltage battery” warning labels in
a prominent position.
nTorque
Tighten the nuts or bolts to the recommended levels of fastening torque
indicated on the product label (if applicable). A loose connector can cause
problems in charger adjustment, erratic battery performance, possible
damage to the battery and/or personal injury.
nBlocs in Parallel Strings
When using constant voltage chargers, ensure that the connections
between the charger and the end of each string within the battery have the
same electrical resistance. Parallel strings should be limited to five strings.
5. Operation
5.1. Float Voltage
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 DataSafe XE monoblocs will accept
very high current during recharge and there is not a need to limit the
available current. For cost and practicle 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. Fast Recharge
In instances where the time to repeat duty is critical the charge voltage
should be set to 2.40Vpc at 20˚C (68˚F), with the rectifier current limit set to
a minimum of 0.1C10 A. Fast charge should be stopped and reverted to float
voltage after approximately 10 to 15 hours.
5.4. Periodic Boost Charge
In normal operation a periodic boost charge is not required. However,
in some cases such as when extended or repeated line power outages
result in the battery exeriencing extended periods of undercharging,
a boost charge equivalent to 2.40Vpc at 20˚C (68˚F) for a maximum
of 15 hours can be applied.
5.5. Discharging
For maximum battery life, the end of discharge voltage should be limited
to 1.60Vpc for low rate discharges or 1.50Vpc for high rate discharges
(10 minutes or less in rated duration). Failure to protect batteries from
discharges exceeding this level may impact warranty.
nDischarged Monoblocs
DataSafe XE batteries must not be left in a discharged condition after
supplying the load, but must be immediately returned to float recharge
mode. Failure to observe these conditions may result in greatly reduced
service life and unreliability.
nAccidental Deep Discharge
When the battery is completely discharged, the sulphuric acid is completely
absorbed and the remaining electrolyte consists only of water. At this point,
the sulphation of the plates is at its maximum, considerably increasing the
cell’s internal resistance.
Important notice: this type of deep discharge will provoke a premature
deterioration of the battery and a noticeable effect on life expectancy.
6. Maintenance and Records
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.
• Every six months (record all readings)
– Measure the battery string voltage. If necessary, adjust the float
voltage to the correct value.
– Measure individual bloc voltages.
– Bloc to bloc connection resistance (Ohms)
– Terminal Connection Resistance (Ohms)
– Ambient temperature in the immediate environment
– Check the fastening torque indicated on the product label
Inspect for contamination by dust, loose or corroded connections. If necessary,
isolate the string/bloc 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 carried out once or twice a year.
The above record taking is the absolute minimum to protect the warranty.
This data will be required for any warranty claim made on the battery.
Contact EnerSys if you have any questions regarding maintenance.
7. Disposal
DataSafe XE 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.
Due to the phenomena of gas recombination, it is not uncommon to note
a variation in individual block float voltages of 2% (or up to 5% for
relatively new batteries). However the total voltage of the battery shall
be within the limits stated above.

EnerSys World Headquarters
2366 Bernville Road, Reading,
PA 19605, USA
Tel. [phone] /
[phone]
EnerSys EMEA
EH Europe GmbH
Baarerstrasse 18
6300 Zug
Switzerland
EnerSys Asia
152 Beach Road,
Gateway East Building #11-08
Singapore 189721
Tel. [phone]
© 2019 EnerSys. All rights reserved. Trademarks and logos are the property of EnerSys and its afliates unless otherwise noted.
Publication No. EN-DS-XE-IOM-003 SEE1555 – September 2019 – Subject to revisions without prior notice. E.&O.E.
Contact: