
Supplement | Evita V series / Babylog VN series 17
Principles of operation | English
New batteries
The following data for minimum battery runtime apply to new and fully charged
batteries. The symbol for a fully charged battery is displayed (see "Battery charge
indication on the screen", page 15). For further information see: "Technical data",
page 12. Owing to production fluctuations during the manufacture of batteries, the
battery runtime can be considerably longer.
Aged batteries, e.g., 2 years old
The following data for the minimum battery runtime apply, e.g., to 2-year old and
fully charged batteries. The data are approximate values and cannot be regarded
as guaranteed for every battery, The symbol for a fully charged battery is displayed
(see "Battery charge indication on the screen", page 15). For further information
see: "Technical data", page 12.
When the internal battery and the batteries in the PS500 show less than the
following minimum battery runtimes, they are considered to be spent.
A reduction in the capacity of batteries due to ageing and utilization is normal. As
a greatly simplified approximation, an average linear reduction in capacity can be
assumed. The current individual capacity of a battery depends on the following
factors, among others:
–Age
– Utilization (frequency, duration, and power consumption)
– Battery charge
– Ambient temperature
9.1.4 Alarm behavior during battery operation
The switch-over of the device to battery operation is indicated by the Battery
activated alarm (see "Alarm – Cause – Remedy", page 7). The alarm can be
acknowledged by the user. Consequently, the Battery activated alarm will no
longer be displayed until the mains power supply is re-established.
When the device is equipped with a PS500 power supply unit, in battery operation
the PS500 is discharged first. If the mains power supply has not been re-
established, the device switches over to the internal battery after the battery runtime
of the PS500 has elapsed. The switch-over is indicated by the Internal battery
activated alarm.
Battery used (battery type) Minimum battery run-
time without operating
a GS500
Minimum battery run-
time while operating a
GS500
Internal battery 30 min 15 min
PS500 (VRLA) 240 min 120 min
PS500 (LFP) 240 min 120 min
Battery used (battery
type)
Minimum battery run-
time without operating a
GS500
Minimum battery run-
time while operating a
GS500
Internal battery 22 min 11 min
PS500 (VRLA) 120 min 60 min
PS500 (LFP) 192 min 96 min