Battery Care - Agilent Technologies FieldFox N9912A User Manual

How to determine if a battery needs reconditioning
1. Press System then
2. On the Battery screen, if the Max Error is 10% or greater, the battery needs to
This error will affect many of the displayed battery charge indicators.
After reconditioning, if the battery is not fully charged or continues to show
more than a 9% Max Error reading, repeat the reconditioning procedure.
If the third reconditioning does not restore a full charge and give an error
reading of 9% or less, the battery may need replacement.
You can recondition a battery internally, or with the External Charger (N9910X–
872). The external charger process is faster and simpler.
How to perform Internal Reconditioning
1. Fully charge the battery inside the FieldFox (either ON or OFF) using the
2. Confirm that the battery is fully charged. When fully charged, the following
3. Fully discharge the battery by disconnecting the AC/DC adapter, then leave
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
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 159. Operation
with a degraded battery could result in damage to the FieldFox. Learn more on
page 172.
158
Service Diagnostics
be reconditioned.
AC/DC adapter.
icon appears on the FieldFox:
the FieldFox ON until it shuts down (about four to five hours).
battery.
that the Max Error is less than 10%.
recharge it fully again. The entire process can take up to 12 hours.
reconditioned.
then Battery.
then
Service Diagnostics
screen to verify
Battery
N9912A FieldFox User's Guide