4
Connect the battery cable delivered with the long backup time model to an external battery pack.
(This step is optional for the long backup time model. The standard model contains batteries and
provides no battery port.)
The installation method for 1 kVA UPS, 2 kVA UPS, and 3 kVA UPS is the same. The figures
below are based on the 3 kVA UPS.
For details, see the UPS2000-G-(1 kVA-3 kVA) Battery Pack Quick Installation Guide.
Installing the UPS Battery Cable (Only for UPS with Long Backup Time)
3.2
UPS load
UPS2000-G-3KRTS
UPS2000-G-3KRTL
UPS load
UPS2000-G-2KRTL
UPS load
1. If the 1 kVA UPS with long backup time needs to connect to external battery strings, each
battery string must consist of three 12 V batteries connected in series. If the 2 kVA UPS with
long backup time needs to connect to external battery strings, each battery string must consist
of six 12 V batteries connected in series. If the 3 kVA UPS with long backup time needs to
connect to external battery strings, each battery string must consist of eight 12 V batteries
connected in series.
2. The UPS with long backup time provides a charge current of 4 A and the current is not
configurable. If the UPS needs to connect to battery packs or battery strings, the total battery
capacity must exceed 18 Ah. Otherwise, batteries may be damaged. If the capacity of external
battery packs or battery strings to be connected exceeds 40 Ah, it is recommended that an
external charger be purchased to increase the charge current. If an external chargers is not
purchased, the charge time will be long.
3. The battery pack (ESS-36V12-9*2AHBPVBB01) for 1 kVA UPS with long backup time contain
two group battery strings. The battery pack (ESS-72V12-9AHBPVBB01) for 2 kVA UPS with
long backup time only contain one group battery strings. The battery pack (ESS-96V12-
9AHBPVBB02) for 3 kVA UPS with long backup time only contain one group battery strings.
4. The 1 kVA UPS with long backup time is allowed a maximum of two battery packs (ESS-36V12-
9*2AHBPVBB01) in parallel. The 2 kVA UPS with long backup time is allowed a maximum of
four battery packs (ESS-72V12-9AHBPVBB01) in parallel. The 3 kVA UPS with long backup
time is allowed a maximum of four battery packs (ESS-96V12-9AHBPVBB02) in parallel.
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