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6. UPS Maintenance
6.1 UPS and Battery Care
For the best preventive maintenance, keep the area around the UPS clean and
dust-free. If the atmosphere is dusty, clean the outside of the system with a vacuum
cleaner. For long battery life, keep the UPS at an ambient temperature of 25° C (77° F)
6.2 Storing the UPS and Batteries
If you intend to store the UPS for a long period, recharge the battery every 6 months
by connecting the UPS to utility power. The batteries charge to 90% capacity in
approximately 4 hours. However, it is recommended that the batteries charge for 48
hours after long-term storage.
6.3 Time to Replace Batteries
When LCD backlight turns to red, the screen displays "bTWK" and there is a
continuous sounding, the battery may need to be replaced. Check the battery
connection or contact your local dealer to order a new battery.
WARNING:
Turn off the UPS and disconnect the utility power cord from the wall outlet.
Servicing should be performed by qualified service personnel experienced
with batteries and required precautions. Keep unauthorised personnel away
from batteries
Batteries can present a risk of electrical shock or burns from high short
circuit current. The following precautions should be observed:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Do not lay tools or metal parts on top of batteries.
4. Wear rubber gloves and boots.
5. Disconnect the charging source prior to connecting or disconnecting battery
terminal.
When replacing batteries, replace with the same type and number of
batteries or battery packs. Contact your service representative to order new
batteries.
Do not incinerate batteries. Batteries may explode when exposed to flame.
Proper disposal of batteries is required. Refer to regulations in your
jurisdiction for disposal requirements.
Do not open or mutilate the battery as this may release toxic electrolyte
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