564 Keysight N9927-90001 User’s Guide
Working with the Lithium-Ion Battery
Reconditioning Battery
Reconditioning Battery
Reconditioning a battery can be performed ONLY 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 it fully again. The entire process can take up to 12 hours.
4. Install the battery into the FieldFox.
5. On the System, Battery screen, verify that the battery is fully charged.
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. Refer to “Lithium-Ion
Battery Disposal” on page 565. Operation with a degraded battery could result
in damage to the FieldFox.
Maximizing Battery Life
— If AC power is not continuously available (Ex: in a field environment), use the
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.
— If the FieldFox is not going to be used for more than a week, remove the
battery. Best practice is to store the battery with a charge of about 50%. At
this charge level, 3 segments show on the battery gauge.
— Allow a battery to warm to room temperature before charging it.
Temperature shock can damage the battery chemistry and in some cases
cause a short circuit.
— Store batteries in a cool, dry location, away from metal objects and
corrosive gases.
Storage temperature limits (20% to 50% relative charge is recommended):
Transportation: –20°C to 50°C
Within 1 month: –20°C to 45°C
Within 6 months: –20°C to 40°C
Within 1 year: –20°C to 35°C
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