Datasheet
S8BA
14
Do not throw the unit into fire.
• Since the battery is incorporated in the unit, the 
insulator may melt, the gas exhaust valve or protection 
mechanism may be damaged, or the electrolyte may 
catch fire, and it may result eventually in an abnormal 
heating, smoke, rupture or fire.
Do not insert metal objects into the input terminal block 
and the output terminal block of the UPS.
• Doing so may result in electric shock.
Do not insert metal objects into the battery connectors.
Do not short between the connector terminals.
• Doing so may result in electric shock.
• The battery's protection board may be damaged due 
to a short-circuit.
(for battery replacement)
Risk of explosion if battery is replaced by an incorrect 
type.
• Not doing so may cause a fire.
• Battery pack for; product model: S8BA-B120L.
Do not replace the battery in a place where there is 
flammable gas.
• Spark may occur when connecting the battery, which 
may cause an explosion or fire.
If fluid leaks from the battery, do not touch the fluid.
• Doing so may cause blindness or burns.
• If the fluid contacts your eyes or skin, wash it out with 
lots of clean water and consult your doctor.
Do not disassemble or modify the battery.
• A safety mechanism and protection mechanism to 
prevent danger are embedded into the battery. If they 
are damaged, it may cause an abnormal heating, 
smoke, rupture or fire on the battery.
Do not drop the battery and do not expose it to strong 
impact.
• Doing so may cause a leakage, abnormal heating, 
smoke, rupture or fire on the battery. And, if the 
battery's protection mechanism is broken, the battery 
may be charged at an abnormal current or voltage, an 
abnormal chemical reaction may occur inside the 
battery, and it may result eventually in an abnormal 
heating, smoke, rupture or fire.
Do not short the battery with metal objects.
• Doing so could cause an electric shock, fire or burn.
• Some electrical energy still remains inside the spent 
battery.
Do not dispose of battery in a fire or damage battery.
• The insulator inside the battery may melt, the gas 
exhaust valve or protection mechanism may be 
damaged, or the electrolyte may catch fire, and it may 
result eventually in abnormal heating, smoke, rupture 
or fire.
Do not use a new battery and an old battery at the same 
time.
• The battery may be excessively discharged while 
being used or excessively charged while being 
charged, an abnormal chemical reaction may occur 
inside the battery, and it may result eventually in an 
abnormal heating, smoke, rupture or fire.
• A battery can present a risk of electrical shock and 
high short circuit current.
• Contact with any part of a grounded battery can result 
in electrical shock.
• The following precautions should be observed when 
working on batteries:
(a) Remove watches, rings, or other metal objects.
(b) Use screwdrivers with insulated handles.
(c) Wear rubber gloves and boots.
(d) Do not lay tools or metal parts on top of batteries.
(e) Remove the connection from ground if any part of 
the battery is determined to be grounded.
Dispose of or collect (recycle) the battery according to 
your own rules set for that purpose or as instructed by 
laws and regulations. 
Do not dispose of it in fire. Otherwise, it could explode. 
Before using
Charge the battery soon after purchasing the unit.
• If not used for a long time after being purchased, the UPS may 
become unusable because the characteristics of its battery 
become inferior.
• Connect the UPS to the input power supply and turn ON the 
“Power” switch to charge the battery.
If the UPS is moved from a warm place to a cold place, start using it 
after leaving it as-is for a few hours.
• If the UPS is suddenly moved to a warm place, water may adhere 
to it (condensation). In such a case, if power is supplied without 
checking the condition, the UPS may be damaged.
• Take measures against the unexpected events such as protecting 
data and making the system redundant.
• The UPS may stop its power due to failure.
For Connection
Be careful not to let a short-circuit occur between output lines of the 
UPS and not to let an output line and the ground be short-circuited (a 
ground fault).
• Otherwise, the UPS may be damaged.
To transfer or sell the UPS to a third party, attach all the documents 
and other accessories contained in the product package to the UPS. 
It is supposed that the UPS is to be used in accordance with the 
conditions specified in the attached documents.
• The details related to safety are described in this document. Check 
the details before using the UPS. In case you lose this document, 
download a copy from the Omron Website.
While Using the UPS
Turn OFF the “Power” switch of the UPS before turning OFF the input 
power supply.
• When the input power supply is stopped, backup operation starts.
• If the frequency of backup operation becomes high, the battery life 
may be significantly reduced.
Do not use the UPS for purposes requiring frequent backup operation.
• The battery will deteriorate and become unable to last for the 
specified backup time.
For Storage
To store the UPS for a long time, store it in an environment where the 
ambient temperature is 25°C or lower, and charge the battery once 
every year for 10 to 15 minutes.
• The battery discharges itself even if it is not used. If the battery is 
left unused for a long time, it goes into a state of over-discharge. In 
such a case, the backup time may become shorter, or the battery 
cannot be used anymore.
• We recommend an environment where the ambient temperature is 
25°C or lower to store the UPS for a long time.
• Keep the “Power” switch of the UPS turned OFF during storage.
•
Do not install or store the UPS in a location exposed to direct sunlight.
• The built-in battery may deteriorate rapidly due to an increase in 
temperature and become unusable.
Precautions for Safe Use
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