USER’S MANUAL
4.4 INSTALLATION OF BATTERY
A.
Make sure using the correct battery cable. The over current ability of the battery cable should not
be less than the maximum discharging current. Please refer to the below table.
Model No.
Specification of Battery Cable
UPS-HEATST-STEADY300VA-WL
10AWG / 5.26mm2
UPS-HEATST-STEADY500VA-WL
10AWG / 5.26mm2
UPS-HEATST-STEADY800VA-WL
8AWG / 8.37mm2
UPS-HEATST-STEADY1000VA-WL
8AWG / 8.37mm2
UPS-HEATST-STEADY1500VA-WL
8AWG / 8.37mm2
B. Make sure the battery voltage is correct, you can find the battery voltage which is
shown in the back plate of UPS.
C. Disconnect the UPS from mains power completely.
D. Connect the negative (-) of battery to the BATTERY TERMINAL “-” of UPS, and
positive (+) to the BATTERY TERMINAL “+”.
E. Before replacing battery, turn off the UPS and disconnect it from mains power.
This UPS is designed for long time backup, the connected battery should be at least 20AH
because the initial charging current is at least3A. Smaller battery could be damaged easily.
4.5 CONNECT TO MAINS POWER AND TO LOAD
A. Plug the UPS into the wall socket.
B. Make sure the loads/appliances are turned off before connection.
C. Connect the loads/appliances to the UPS one by one. Make sure the total capacity of
connected appliances does not exceed the rated capacity of UPS.