Battery General Information - Keysight N1913 User Manual

2 General Power Meter Functions

Battery General Information

Please use this information to maintain your power meter battery in optimum
condition and prolong its operating life.
Battery Storage
If left unused, a fully charged battery discharges over a period of time. A fully
charged battery removed from a power meter and stored for a maximum of two
months retains a low-level charge. When a battery in this low-charge state is
fitted to a power meter, several hours charging may be required before the power
meter indicates the battery is charging.
Storage temperature limits: –20 °C to 60 °C, ≤ 80% RH
In extreme cases of discharge, when the battery has been stored in excess of
CAUTION
two months, recovery may not be possible and a replacement battery is
required. A battery that remains discharged after two days on charge can be
assumed discharged beyond recovery - a replacement is required.
Failing Battery
The battery can be charged and discharged numerous times but due to battery
chemistry characteristics, the operation time decreases. When the battery
powered operation time of your power meter becomes noticeably shorter, it is
time to order a new battery.
To obtain a replacement battery, order Keysight part number N1913-37900.
128 Keysight N1913/1914A User's Guide