Siemens SITOP UPS1600 Equipment Manual page 233

SITOP BAT1600 LiFePO4 battery module
Article number: 6EP4132-0JA00-0AY0 and 6EP4134-0JA00-0AY0
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 SITOP BAT1600 LiFePO4 battery
modules are fully charged cyclically in order to avoid deep discharge of the installed lithium
iron phosphate 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:
• Charge voltage 28.8 V, current limited to max. 0.2 CA (e.g.: 2.5 A LFP ... charge current =
0.5 A); charge duration min. 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 installed lithium iron phosphate batteries. 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.
Note
For transport by air, it is legally stipulated that lithium iron phosphate batteries may only be
charged to a maximum of 30 % of their nominal capacity. This is the reason that when
transported by air, the maximum energy content of the SITOP BAT1600 LiFePO4 battery
module is presently 30 % of the nominal capacity. As a consequence, we recommend that the
SITOP BAT1600 LiFePO4 battery module is fully charged after a long period of standalone
storage.
Before transporting and shipping the SITOP BAT1600 LiFePO4 battery module, the prewired
plug-in terminals should be withdrawn and the fuse removed. In addition, the internal
minus conductors must be withdrawn from the batteries and the appropriate measures
taken so that no short-circuit can occur between the battery poles! In international
transport legislation, lithium iron phosphate batteries are classified as "hazardous goods"
according to UN 3480. The applicable national and international hazardous goods regulations
must be carefully complied with corresponding to the type of transport selected!
SITOP UPS1600 / BAT1600 / UPS1100
Equipment Manual, 07.2021, A5E37775406-11-76
7.9 Service life of the batteries and handling
Installation
233