Cells must be given a freshening 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. Freshening Charge
Charge the module or string of modules at a constant voltage equivalent to 2.27Vpc
with current limited to 10A per 100Ah nominal capacity for a period of at least
24 hours, but with a maximum of 48 hours. Use temperature compensation as
indicated in Section 5. Start monitoring the charging current 21 hours after initiating
the freshening charge. The charge is complete when the current stabilizes. Current
stabilization is defined as 3 current readings at least 1 hour apart within five percent
of each other. Do not charge in an airtight enclosure.
Completing a freshening charge according to the instruction will reset the storage
OCV audit interval and suggested maximum storage time. If voltage drops below
2.10 Vpc contact EnerSys
®
for instruction.
2 www.enersys.com
1. Receiving the battery
1.1 In-Transit Damage or Short Shipments
Upon receipt of a shipment, 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 immediately installed it should be stored in a clean,
cool, dry area.
During storage, the battery’s state of charge is reduced due to self-
discharge.
High temperature increases the rate of self-discharge and reduces the
storage life.
The chart below shows the relationship between Open-Circuit Voltage (OCV)
and storage time at various temperatures. While the batteries are in storage,
OCV should be measured according to the OCV audit intervals.
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.
Do not allow flames,
embers or sparks near the
battery due to the risk of
explosion or fire!
Electrolyte is
corrosive
Important
Read these instructions immediately upon receipt. PowerSafe
®
SBS batteries are safe when operated and handled properly. It is vitally important that you
observe the precautions recommended in this instruction sheet. YOU SHOULD BE TRAINED IN HANDLING, INSTALLING, OPERATING AND MAINTAINING
BATTERIES BEFORE YOU WORK ON ANY BATTERY SYSTEM.
When working on batteries wear safety
glasses with side shields, rubber gloves
and protective clothing. All metallic personal
objects, such as rings, watches, bracelets,
etc., should be removed before starting work
on the battery! Only use insulated tools!
In case of SKIN CONTACT with electrolyte,
IMMEDIATELY
1. REMOVE contaminated CLOTHING
2. FLUSH the area THOROUGHLY with
WATER
3. Get MEDICAL ATTENTION
In case of EYE CONTACT with electrolyte,
IMMEDIATELY
1. FLUSH THOROUGHLY for at least
15 minutes with large amounts of
WATER
2. Get MEDICAL ATTENTION
In case of electrolyte CONTACT WITH CLOTHING OR MATERIAL,
IMMEDIATELY
1. REMOVE CONTAMINATED CLOTHING
2. Apply large amounts of water to affected area.
3. Wash clothing as soon as possible.
Batteries can generate gases which, when
released, can explode, causing blindness and
other serious personal injury.
Warning: batteries remain live even though
they are disconnected. No rings or metal
bracelets should be worn during the assembly
of the battery. Do not place electrically
conductive objects such as tools etc. on top
of the battery! Warning: cells are heavy, use
proper lifting technique.
PowerSafe
®
SBS batteries are supplied in a charged state and are capable of extremely high short circuit currents. Take care to avoid short-circuiting terminals of
opposite polarity. Warning: cells are heavy, use proper lifting technique.
The Instruction Sheet must be strictly observed. Non-compliance with the Instruction Sheet, use of non OEM spares or use of additives to the electrolyte or
unauthorized tampering will void the warranty.
Spent batteries with this symbol are reusable products and have to be put into a recycling system. Used batteries must be disposed of as
special waste in accordance with all standards.
Temperature °F (°C) Storage Time (Months)*
OCV Audit Intervals (Months)**
50 (10) and less 48
6
59 (15) 34
6
68 (20) 24
4
77 (25) 17
4
86 (30) 12
3
95 (35) 8.5
2
104 (40) 6
2
*Storage values indicated are based on constant temperatures.
**Recommended OCV audit interval.
Do not store below -40ºF (-40ºC)
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