Tektronix H600 RFHawk, Service Manual

Page: 87 / 109

Lithium-Ion Battery Maintenance
Fully Discharging a Battery.
NOTE.
During battery discharge, keep the instrument environment temperature
between –10 °C and 50 °C (14 °F and 122 °F), and the relative humidity between
0% and 80%.
1. Disconnect the external power adaptor.
2. Install the single battery that you want to discharge.
3. Power on the instrument and a measurement application.
4. Double-tap the Power Management icon in the system tray.
5. Tap the Power Saver tab and select No Power Saver actions .
6. Set the instrument to a high-power-consumption measurement such as DPX
Spectrum.
7. Let the instrument and measurement run. The instrument automatically shuts
down when the battery is fully discharged. The battery is now completely
discharged.
When to Replace a Battery Record the date, battery serial number, charge time and run time when you start
using a new instrument, or when you install new batteries. Set up a schedule to
check and record the battery charge and calibration status. See the
Checking the
Battery Charge Status section in this document.
Compare the charge time and instrument run times with those for new batteries at
least every six months. When any of the following behaviors occur, you should
consider replacing your batteries:
It takes signi fi cantly longer (>150%) to charge used batteries than it does to
charge new batteries.
The BATTERIES CHARGER LED on the front panel does not stay on
continuously while the batteries are charging.
After the battery is fully charged, the instrument run time is signi fi cantly
shorter (<80%) with older fully-charged batteries than it is with new batteries.
A charge cycle never completes.
The Power Management Batteries tab does not show a Fully Charged status
after a charge cycle.
The battery is more than three years old.
H600 & SA2600 Service Manual 4–29