R&S FSH
Putting into Operation
Setting up the R&S FSH
Quick Start Guide 1309.6269.12 - 09
18
1.3.3 Battery Maintenance
The R&S FSH comes with a lithium-ion battery. In general, these batteries are easy to
handle. When you handle the battery, mind the things mentioned in the safety
instructions and those in this chapter.
1.3.3.1 Handling
● The battery has been designed for a specific application. Do not use it for any
other application
● Do not connect batteries in series or parallel as it can cause serious damage.
● Observe correct polarities during installation and charging.
● Do not heat over 70°C. The battery contains thermal fuses that could activate and
render the battery inoperable.
● The battery contains an electronic device for protection against deep discharge,
overcharge and short-circuiting between the terminals.
-
If you cannot discharge the battery, it may be deep discharged. Charge the
battery for 0.5 hours and check again.
-
If you cannot charge the battery, it may be overcharged. Discharge the battery
and check again.
-
If the battery has been short-circuited, charge it to reset the electronics.
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If the battery still does not work, contact the Rohde & Schwarz customer
support.
● Do not allow metallic objects to come into contact with the terminals.
● Do not solder directly to the battery.
1.3.3.2 Storage
The battery self-discharges while not in use. When storing the battery for an extended
period of time, make sure to
● handle the battery carefully to avoid short circuits. Make sure that leads and
terminals are insulated.
● keep the battery in the supplied packaging prior to use. The temperature must be
between -20°C and +50°C.
● store the battery at an initial state of charge between 15% and 50% of its capacity.
When calculating the initial state of charge, consider
-
the maximum consumption of electronic devices
-
the self-discharge of the battery - the higher the state of charge, the higher the
rate of self-discharge
● avoid a deep discharge of the battery. A deep discharge occurs when the state of
charge falls below 5% of the battery's capacity.
● recharge the battery at least every three months.
Should the battery voltage be low or even 0 V, the battery protection circuit may have
gone into a sleep mode. In that case, reset the battery with an approved charger.
