Replacing Batteries; How To Replace Ebms - Eaton Powerware BladeUPS User Manual

UPS MAINTENANCE

Replacing Batteries

120
Eaton BladeUPS (12 kVA) User's Guide
NOTE DO NOT DISCONNECT the batteries while the UPS is in Battery mode.
Batteries can be replaced easily without turning the UPS off or disconnecting the
load.
If you prefer to remove input power to change the batteries, see "Individual Paralleled
UPS Shutdown" on page 102.
Consider all warnings, cautions, and notes before replacing batteries.
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Servicing should be performed by qualified service personnel knowledgeable of batteries and required
precautions. Keep unauthorized personnel away from batteries.
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Batteries can present a risk of electrical shock or burn from high short circuit current. Observe the
following precautions: 1) Remove watches, rings, or other metal objects; 2) Use tools with insulated
handles; 3) Do not lay tools or metal parts on top of batteries, 4) Wear rubber gloves and boots.
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When replacing batteries, replace with the same type and number of batteries or battery packs. Contact
your service representative to order new batteries.
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Proper disposal of batteries is required. Refer to your local codes for disposal requirements.
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Never dispose of batteries in a fire. Batteries may explode when exposed to flame.
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Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes and
may be extremely toxic.
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Determine if the battery is inadvertently grounded. If inadvertently grounded, remove source from ground.
Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock
can be reduced if such grounds are removed during installation and maintenance (applicable to
equipment and remote battery supplies not having a grounded supply circuit).
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ELECTRIC ENERGY HAZARD. Do not attempt to alter any battery wiring or connectors. Attempting to alter
wiring can cause injury.
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Disconnect charging source prior to connecting or disconnecting battery terminals.

How to Replace EBMs

The EBM is heavy (see page 130). Lifting the cabinet into the rack requires a minimum of two people.
To replace the EBMs:
1. Switch all battery circuit breakers to the OFF (O) position (see Figure 55 on
page 67).
2. Unplug the EBM cable from the UPS.
If additional EBMs are installed, unplug the EBM cable from the battery
connector on each EBM.
3. If not already installed, install the supplied mounting brackets on the new EBM.
4. Replace the EBM. See "Recycling the Used Battery or UPS" on page 128 for
proper disposal.
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