72
8.5 Delta Standard Battery Pack (Optional)
When connecting the Delta standard battery pack to the UPS, please also refer to the User Manual
included in the package of the battery pack.
Table 8-2: Battery Parameters_ Delta Standard Battery Pack
Battery Type
Float Charging
Voltage
Charging
Current
*
3
Low Battery
Shutdown
Battery Q’ty
(Per Batt. Pack)
Delta lead-acid
battery pack
(RT-10KB)
*
1
272.4V ± 1% at
25°C
(77°F)
1.5A
(default)
1. 216V ± 2V
(when the back-up
time > 1 hour or the
loads < 30%)
2. 210V ± 2 V
(when the back-up
time < 1 hour)
12V × 20 PCS
Delta lithium-ion
battery pack
(RT-20K-LIB/
RT-10K-LIB)
*
2
216V ± 2V
1.5A
(default)
162V ± 2V 189V × 2 PCS
NOTE:
1.
*
1
You can connect several paralleled battery packs to the UPS to increase the back-
up time. The number of the battery packs for RT-15K3P/ RT-20K3P UPS must be a
multiple of two.
2.
*
2
RT-20K-LIB is applicable to RT-15K3P and RT-20K3P UPS; RT-10K-LIB is
applicable to RT-10K3P UPS. Each UPS must connect to only one Delta lithium-ion
battery pack. More than one is not permitted.
3.
*
3
For the Delta lead-acid battery pack, the maximum settable charging current is 8A.
For the Delta lithium-ion battery pack, the maximum settable charging current is 6A. For
the setting information, refer to
Chapter 10.2.2
. The charging current will be influenced
by on-site configurations, environment temperature and load conditions. If you need to
modify the default charging current, please contact your local dealer or Delta customer
service.
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