TOSHIBA
5.0
Operating the UPS (Cont'd)
5.6
Battery Recharging
The graph below shows the typical voltage requirements for recharging the UPS unit's
batteries.
5 - 7
Model
Vmax.
Vmin.
Charge
600 VA / 600 VA Plus
41.4
28.8
0.4 (A)
800 VA / 800 VA Plus
55.2
38.4
0.4 (A)
1000 VA / 1000 VA Plus
55.2
38.4
0.4 (A)
1200 VA
69.0
48.0
0.4 (A)
1500 VA / 1500 VA Plus*
82.8
57.6
0.4 (A)
2000 VA**
110.4
76.8
0.4 (A)
2400 VA
110.4
76.8
0.4 (A)
*
Includes 2000 VA rack mounted unit, UC1A1A020C6RKB
** Except 2000 VA rack mounted unit, UC1A1A020C6RKB
Rated battery voltages
Period 1
Period 2
Period 3
Time
Current
Voltage
Vmax.
Vmin.
current
Battery
charge
voltage
Fully
charged
Discharge
shut-off point
Charging
0.4 amp (A)
0
0
The recharge process usually consists of three periods. During the first period, the
current is maintained at approximately 0.4 amperes. In the second period, the constant-
voltage control starts and the current gradually decreases as the batteries continue to
charge. In the third period, a slight current flows into the batteries to keep them fully
charged. After a complete discharge, a full recharge usually requires 24 hours (90%
recharge in 8 hours).
The chart depicted below shows the rated maximum and minimum battery voltages,
and the charge current for each of the sizes.
Summary of Contents for 1400RE Series
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