Njoy Aira 600 Series User Manual page 7

CAUTION
It's very important for system safety and efficient operation to use
appropriate external battery cable. To reduce risk of injury, external
battery cables should be rated for 75° C or higher. Do NOT use
copper cables with less than 10mm in cross sectional area!
2. Make sure to connect the polarity of battery side and the unit correctly.
Positive pole (Red) of battery to the positive terminal (+) of the unit.
Negative pole (Black) of battery to the negative terminal (-) of the unit.
3. After connecting the battery to the UPS use tape to isolate the external
battery terminals.
4.2 Connecting to utility and charge
Plug in the AC input cord to the wall outlet. The unit will automatically
charge the connected external battery even though the unit is off.
4.3 Starting the UPS
Please make sure that the battery is connected before you turn ON the
UPS. If your battery is connected you can turn ON the ON/OFF switch
and charge the battery or batteries at least 8 hours for a full load.
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