Orientation; Blocs Configurations; State Of Charge; Storage - EnerSys Nexsys 12NXS26 Technical Manual

NexSys Technical Manual

ORIENTATION

NexSys® blocs can be mounted in any orientation except inverted.
BLOC CONFIGURATIONS
NexSys blocs may be configured into a bloc comprising series/parallel strings, with the
maximum number of parallel strings limited to 3. It is paramount that the cable lengths within
each string are equal.
Only EnerSys® approved components/parts must be used in conjunction with NexSys
product.

STATE OF CHARGE

The open circuit voltage of the individual NexSys bloc prior to installation can be used as an
approximate guide to the state of charge (SOC) of the bloc. Figure 1 also shows the
influence of storage temperature on the charge retention characteristics.
Figure 1
STORAGE – INDIVIDUAL NEXSYS BLOCS
This data in this section only apply to blocs in storage not fitted to equipment.
Batteries are dispatched from the manufacturer in a fully charged condition. The state of
charge will decrease with storage. All batteries lose their stored energy when allowed to
stand open-circuit, due to parasitic chemical reactions.
Self- discharge is also strongly influenced by temperature; high temperatures greatly reduce
storage life (Figure 1, as above). It is recommended that the fully charged battery should be
stored in a cool dry place, ideally below 20°C/68°F.
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