Battery Care; Maximizing Battery Life - Keysight N9912A User Manual

3. Fully discharge the battery by disconnecting the AC/DC adapter, then leave the
4. Remove the battery from the FieldFox, wait one minute, then re-install the
5. Reconnect the AC/DC adapter.
6. Charge the battery and verify a full charge.
7. Check the System then
How to Recondition with the External Battery Charger (N9910X–872)
1. Insert a battery into the left bay of the external charger.
2. Press the button labeled Push to Recalibrate Left Battery Bay
3. The charger will charge the battery fully, discharge it completely, then recharge
4. Install the battery into the FieldFox.
5. On the System, Battery screen, verify that the battery is fully charged and

Battery Care

Visually inspect the battery periodically for signs of degradation, such as swelling,
cracking of the battery shell, or leakage of fluid. If degradation occurs, replace the
battery and dispose of it properly. Learn how on page 190. Operation with a
degraded battery could result in damage to the FieldFox. Learn more on page 193.

Maximizing Battery Life

 If AC power is not continuously available (Ex: in a field environment), use the
 If the FieldFox is not going to be used for more than a week, remove the battery.
 Allow a battery to warm to room temperature before charging it. Temperature
 Store batteries in a cool, dry location, away from metal objects and corrosive
 Battery charging limits:
Working with the Lithium-Ion Battery
FieldFox ON until it shuts down (about four to five hours).
battery.
that the Max Error is less than 10%.
it fully again. The entire process can take up to 12 hours.
reconditioned.
battery and recharge it when it holds a 20% to 50% charge, as shown on the
screen's battery charge icon. At this charge level, 2 or 3 segments show on the
battery gauge.
Best practice is to store the battery with a charge of about 50%. At this charge
level, 3 segments show on the battery gauge. Batteries that remain idle eventually
lose their ability to hold a charge.
shock can damage the battery chemistry and in some cases cause a short circuit.
gases.
Storage temperature limits (20% to 50% relative charge is recommended):
Transportation: –20°C to 50°C
Within 1 month:
Within 6 months:
Within 1 year:
Charge temperature:
Discharge temperature:
then
Service Diagnostics
–20°C to 45°C
–20°C to 40°C
–20°C to 35°C
0°C to 45°C (<10°C slows charge on some batteries)
–10°C to 60°C
screen to verify
Battery
189