Appendix B Maintenance And Troubleshooting Maintaining The T-Berd/Mts 5800 And Sc 4800 Batteries; Recharging The Battery - Viavi T-BERD MTS 5800 Getting Started Manual

Appendix B Maintenance and Troubleshooting
Maintaining the T-BERD/MTS 5800 and SC 4800 batteries
• Constantly holding a Li-ION battery at full charge can shorten the battery lifetime.
Do not keep the AC power adapter connected for long durations without occasion-
ally discharging the battery. Disconnect the adapter about once a month and
operate the instrument using battery power to discharge the battery to approxi-
mately 20%-40%. If you have a spare battery, rotate the batteries periodically (for
example, once a month) so that they are used on a regular basis.
• The charger will not charge the battery when the battery temperature is above or
below the battery's charging temperature specification.
• Store the instrument and battery in a cool, dry, and clean environment. Do not
leave the battery in a car or truck, particularly during extremely hot or cold
weather.
• When storing the instrument for extended periods of time, it is best to keep the
battery capacity in the 20% to 80% range. The battery will discharge slowly over
time when the instrument is off, so it is recommended to occasionally check that
the battery is not approaching full depletion.
See "Checking the battery" on page 72

Recharging the battery

The T-BERD ⁄ MTS 8000, 6000A, and 5800, and SC 4800 will typically run between two
and five hours on a fully charged battery, depending on the type of tests you are
conducting. Some applications or modes require more power than others, so run time
will vary.
When the battery level is at 25 percent or less, the battery should be recharged.
NOTE:
You can test a circuit and recharge the battery at the same time. If you do not
want to interrupt the current test, you may leave the power on and connect the
AC power adapter. You can also charge the battery while it is removed from
the T-BERD ⁄ MTS 8000, 6000A, and 5800.
To charge the battery
1 Connect one end of the AC power adapter to the power jack on the right side
panel.
2 Connect the other end of the AC power adapter to an AC power supply.
3 Let the instrument charge for up to 7 hours depending on the battery charge level.
The power button is amber when the battery is charging.
The battery icon in the title bar turns green when the charge is above the "low
battery" threshold.
Page 246
WARNING: ELECTRICAL SHOCK
Electrical shock may result in serious injury or death. Be sure the AC power
adapter is connected to the correct voltage mains. Do not use outdoors or in
wet locations. Use only the AC power adapter supplied with the instrument.
T-BERD/MTS/SC Getting Started Guide
22046537, Rev. 016
for information on checking the battery status.
March 2018