Specifications

R&S FSH Charging the Battery
1145.5973.12 1.11 E-10
Charging the Battery
The R&S FSH is fitted with a nickel metal hydride battery. The operating time is approx. four hours at
room temperature if the battery is fully charged.
Note: The battery in the R&S FSH is not charged when it leaves the factory. It must therefore be
charged after delivery.
When stored over an extended period, self-discharging reduces the battery charge. The battery should
therefore be charged before use if it is going to be the sole power source for a long period of operation.
The charging status of the battery is displayed by a
symbol that looks like a battery in the middle of the
screen above the row of softkey labels. If the battery is
fully charged, the entire battery symbol is white. As the
battery discharges, the white coloring disappears in
five steps until just the battery outline indicates that the
battery is flat.
Battery charge-level symbol
The battery is charged via the included power supply unit, which is connected to the jack on the right-
hand side of the carrying handle.
If required, equip the power supply unit
with the country-specific plug. Remove
the plug from the power supply unit
toward the front and firmly connect the
appropriate plug to the power supply
unit.
AC supply plug
Power supply
DC power jack
For rapid charging, be sure to switch off the R&S FSH during charging. The charging time is approx.
four hours.
If the R&S FSH is switched on, the charging current for the battery is reduced by the current drain of the
R&S FSH, which means the battery might not be charged.
To prevent the battery from discharging unnecessarily, the R&S FSH has an automatic cut-off or auto
power down mode that is activated if no entry is made for a definable period of time (5 minutes or
30 minutes).
The auto power down mode is deactivated in the default setting.