Battery Low Voltage Tolerances; Battery Recharging - Toshiba 4200 series Operation Manual

The following illustration graphically shows the battery discharge process at full load
conditions.
6.3

Battery Low Voltage Tolerances

Excessive discharge will cause the UPS system's battery voltage to drop bellow tolerable
levels. The chart shown below lists the voltage level at which each UPS unit's low-voltage
alarm will sound, and also at what level the low-voltage condition will cause the unit to
automatically shut down.
Nominal Voltage
Alarm Voltage
Shutdown Voltage min.
6.4

Battery Recharging

The illustration below shows a graphical representation of the UPS battery recharge process
after a full discharge.
TOSHIBA
75kVA
240Vdc
228Vdc
210Vdc
22
100kVA
324Vdc
308Vdc
283Vdc