-18-
7
．
Battery and battery unit should be kept away from ignition source as well
as all electrical equipment that may easily cause spark, to avoid causing
unnecessary loss.
8
．
During the use of battery unit equipped for UPS, regularly check if the
charger is in good condition to prevent the battery from being overcharged
or undercharged for a long time, and to avoid excessive discharge of
battery. After discharging, immediately (no later than 24 hours) perform
complete charging, only after then will the re-discharged be allowed. Never
re-discharge if the battery is not completely charged, otherwise it will
cause decrease in battery capacity or even damage to battery.
9
．
When not using UPS, please turn off the "OFF" switch on the panel to
avoid causing long-time battery discharge after commercial power failure.
If the UPS has not been used for a long time, regularly perform charging
and discharging of battery to avoid battery damage due to self-discharging.
4.5
Battery Changing
When changing storage battery, pay attention to the following:
1
．
Do not throw battery into fire to avoid explosion.
2
．
Do not open or disassemble battery as the electrolyte is harmful to skin and
eyes.
3
．
Properly recycle the battery according to relevant instructions thereon.
4
．
Replace the used battery with new ones that are of same type and grade.
5
．
Replace the entire battery unit, do not mix the old ones with the new ones.
6
．
Dangerous voltage may exist between battery terminal and the ground. Test
before touching.
4.6
Maintenance Guide
Proper maintenance includes preventive maintenance and remedial aintenance,
which is crucial to optimum operation of UPS and can ensure relatively long
service life of the equipment. Preventive maintenance includes some
procedures that are frequently performed. These procedures are used to
prevent system failure as well as to obtain best operating efficiency. Remedial
