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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 very 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
When the UPS is intended to store 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. Please check the battery connection or
contact your local dealer to order 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 knowledgeable of
batteries and required precautions. Keep unauthorized personnel away from batteries
Batteries can present a risk of electrical shock or burn 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 dispose of battery in a fire. Batteries may explode when exposed to flame.
Proper disposal of batteries is required. Refer to your local codes for disposal
requirements.
Do not open or mutilate the battery. Released toxic electrolyte is harmful to skin and
eyes.
Note: If you are not qualified service personnel to replace the battery, do not attempt to
open the battery cabin. Please call local dealer or distributor immediately.
