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www.enersys.com
Publication No. US-MP-OM-001
March 201
7
5.2 Considerations for Connecting the Battery System to Operating Equipment
The battery has been sized based on a specific load (amps or KW) for a specific run time,
temperature and end voltage. Consult with the system/equipment supplier to determine these
parameters. Battery performance is based on these values which are measured
at the battery terminals.
It is important to ensure that the load cables:
•
between the battery and its load are the shortest routing possible to the terminal,
allowing sufficient additional cable (about 6" [15 cm]) for connect/disconnect.
•
are the proper size to minimize the voltage drop between the battery output terminals
and the load.
•
are connected to the terminal plate (NEVER connect the load cable(s) directly to the
battery terminal).
TABLE 5.1 (continued)
CONSIDERATION
RECOMMENDATION
Ventilation
No seperate battery room or “hood” exhaust is required. However,
VRLA batteries do require adequate ventilation and should not be
installed in “air tight” locations.
Grounding
It is recommended that the modules or racks be grounded in
accordance with NEC and/or local codes.
Floor
Reasonably level. Shimming up to 1/4" (6mm) maximum to level
battery front to rear and side to side. Capable of supporting the
weight of the battery as well as any auxiliary equipment.
Anchoring
All
installations should be floor anchored. Anchoring should meet all
local, state, federal codes and industry standards.
Floor anchoring and its design are the responsibility of the installer.
Ensure
seismic
requirements are considered.
Proximity to Electronic
Equipment
PowerSafe
®
VRLA batteries may be installed next to electronic
equipment, unless the equipment generates heat.
Cell Identification/
Numbering
EnerSys
®
recommends battery one (1) be at the positive (+) output.
Then label the cells in ascending sequential order as the cells are
connected in series. The cells at the end or last cell should be the
highest numbered cell and be at the negative (-) output.
