Battery Backup Time; Load Shed Function; Battery Recharge Time - Toshiba 1700 Series User Manual

Battery Backup Time

The exact amount of backup time provided will vary depending on
the UPS model being used, number of batteries, condition of the
batteries and other factors. However, the chart below gives the
times that can be expected from the standard units with batteries in
good condition. For greater backup time, an additional battery
module may be added to the standard unit. Only one additional
battery module may be added to the standard unit. For longer
runtime options contact your Toshiba sales representative or the
Toshiba marketing department at (800) 231-1412 or by e-mail at
toshibaups@tic.toshiba.com.
With 1 Battery Module
UPS Model
Full Load / Half Load
1500 VA 17 min / 45 min
2000 VA 13 min / 32 min
2400 VA 9 min / 26 min
* Times given are approximate and will vary depending on the age of the batteries, the
battery temperature, the number of previous discharges and the type of load.

Load Shed Function

The 1700 Series includes a load shed function. During battery
backup operation, this function allows the load connected to two of
the receptacles (figure 1, page 9) to be turned off in an effort to
conserve power for more critical loads. The battery level at which
these two receptacles will be turned off, or "shed", can be set by the
user (see "The Function Control Button", page 17). By default, this
feature is configured so that these two receptacles will remain on for
the full battery backup time available (no "shedding")

Battery Recharge Time

The following table gives estimates on time required to recharge the
UPS's batteries. The recharge time may vary depending on the
battery temperature, the age of the batteries, and other factors.
Unit With 1 Battery Module
1500 VA
2000 VA
2400 VA
* Recharge times are to 90% full capacity.
Table 1
Backup Time*
With 2 Battery Modules
Table 2
Battery Recharge Time*
With 2 Battery Modules
4 ½ hours
4 ½ hours
4 ½ hours
Full Load / Half Load
45 min / 116 min
32 min / 77 min
30 min / 64 min
9 hours
9 hours
9 hours