Mounting and maintenance
4.7 Replacing batteries in a battery module
Power supply system SITOP PSU8600
Manual, 09.2018, A5E36758446-5-76
139
4.7.2
Service life and storing the batteries
SITOP BAT8600 Pb battery module
Article number: 6EP4145-8GB00-0XY0
Service life
The following table provides an overview of the expected service life of the lead battery
installed in the battery module, taking into account the ambient temperature. This service life
data is applicable both for system use in standby operation - as well as being stored as
standalone unit.
Temperature [°C]
Service life [years]
-10
16
0
16
10
8
20
4
30
2
40
1
50
0.5
When evaluating the service life of the lead battery installed, also take into account the "state
of health" (SOH) parameter, which the system automatically generates and continually
updates. This takes into account the prevailing ambient temperatures during storage and in
operation.
Proper storage
To achieve an optimum lifetime of the battery module, this should be stored for the shortest
possible time in a dry and cool environment that is frost-free.
For long-term, standalone storage it should be noted that the BAT8600 Pb battery module is
cyclically fully charged in order to avoid the deep discharge of the installed lead batteries.
When stored at room temperature, the recommended recharge interval is approximately
every 6 months; when stored at higher ambient temperatures, the recharge interval must be
shortened to 3 months. At room temperature, the recommended charge parameters for a full
charge are:
●
Charging voltage is 54 V, current limited to 2.5 A; minimum charge duration is 12 hours.
For long-term storage in an unused system – i.e. in a completely wired but deactivated state
– then the application should be cyclically commissioned (approximately every 4 months) in
order to avoid deep discharge of the lead batteries that are installed. The recharge interval
can be extended to approximately 6 months if the fuse in the battery module is removed.
When stored at increased ambient temperatures, then the reduced recharge intervals listed
above must always be applied.
