External Battery Pack Connecting Procedure - CyberPower OLS3S15KE User Manual

Fig.4-4 Connnect the internal Battery Pack DC connectors

4.6. External Battery Pack Connecting Procedure

1) The nominal DC voltage of external battery pack is 240Vdc. To achieve longer
backup time, it is possible to connect multi-battery packs, but the principle of
"same voltage, same type" should be strictly followed.
2) Select the UL1015 6AWG (25mm²) wire or other insulated wire which complies
with AWG Standard for the UPS battery wirings. The procedure of installing
battery bank should be complied with strictly. Otherwise you may encounter the
hazardous of electric shock.
If the UPS (OLS3S15KE/OLS3S20KE) has internal battery pack, first of all,
disconnect the internal battery pack DC connectors. Please refer to the
chapter 4.5.
A DC breaker must be connected between the external battery pack and the
UPS. The capacity of breaker must be not less than the data specified in the
general specification.
Set the external battery pack breaker in "OFF" position and connect the
batteries.
Connect the external battery pack to the battery terminals.
Reconnect the internal battery pack DC connectors, if you had did step one.
3) Do not attempt to connect any loads to the UPS now. Connect the input power
wire to the right position first. And then set breaker of the battery pack in the "ON"
position. Setting the input breaker in the "ON" position. The UPS begins to
charge the battery packs at the time.
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