5. storage
Blocs are shipped from the manufacturer fully charged. The
state of charge will decrease with storage. All blocs lose
their stored energy when allowed to be in open-circuit, due
to parasitic chemical reactions. The rate of selfdischarge
is non-linear and decreases with decreasing state of
charge. It is also strongly influenced by temperature. High
temperatures greatly reduce storage life. It is recommended
that the fully charged bloc should be stored in a cool dry place,
ideally below 20°C. The bloc has a maximum inspection-free
storage life of 2 years, if stored at or below 20°C, after
which a refresh charge should be administered. However, it is
advisable to conduct an inspection and open circuit voltage
check after 12 months and recharge if the OCV is less than
2.10 Volts per cell. The bloc may be stored for up to 5 years
without degradation of performance provided that an open
circuit voltage (OCV) check is conducted every 12 months.
When stored in temperatures in excess of 30°C, the battery
should be OCV checked every 6 months. The graph below
shows the relationship of battery state of charge as a function
of open circuit voltage.
2.19
2.18
2.17
2.16
2.15
2.14
2.13
2.12
2.11
2.10
2.09
2.08
2.07
2.06
105
100
95
91
86
82
77
72
68
63
58
54
49
45
0
5
10
15
20
25
30
35
40
Months
STATE OF CHARGE AS A FUNCTION OF OPEN CIRCUIT VOLTAGE
OPEN CIRCUIT VOL
TAGE
ST
A
TE OF CHARGE [%]
2.05
40
2.04
35
30°C
25°C
20°C
40°C
6. Malfunctions
If malfunctions are found on the bloc or the charger, please
contact an EnerSys representative. The measurements taken
in paragraph 3.3 will identify problems and help establish a
base to correct them.
7. Disposal
NexSys blocs are recyclable. Scrap blocs must be packaged
and transported in accordance with prevailing transportation
rules and regulations. Scrap blocs must be disposed of in
compliance with local and national laws by a licensed or
certified lead acid OK recycler.
Back to the manufacturer!
Batteries with this sign must be recycled.
Batteries which are not returned for the recycling process must be disposed of as hazardous waste!
Pb
www.enersys.com
9602-6718 rev 07 / 11-09-17 © 2017 enerSys. all rights reserved. Trademarks and logos are the property of enerSys and its
affiliates unless otherwise noted. Subject to revisions without prior notice. e.&o.e.
10.2017
