Installation Of Fnb-80Li Battery Pack; Battery Charging - Yaesu FTA-720 Operating Manual

Installation of FNB-80LI Battery Pack

The FNB-80LI is a high-performance Lithium-Ion bat-
tery providing high capacity in a very compact package.
Under normal use, the FNB-80LI may be used for ap-
proximately 300 charge cycles, after which operating
time may be expected to decrease. If you have an old
battery pack which is displaying capacity which has
become diminished, you should replace the pack with a
new one.
 Install the FNB-80LI as shown in the illustration.
 Close the Battery Pack Latch on the bottom of the
radio.
Do not attempt to open any of the recharge-
able Li-Ion packs, as personal injury or dam-
age to the Li-Ion pack could occur if a cell or cells
become accidentally short-circuited.
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Battery Charging

If the battery has never been used, or its charge is de-
pleted, it may be charged by connecting the PA-48B/C
Battery Charger, as shown in
the illustration, to the EXT DC
jack. If only 12 ~ 15 Volt DC
power is available, the optional
E-DC-5B DC Cable (w/ciga-
rette lighter plug) or E-DC-6
DC Cable may also be used for
charging the battery, as shown in the illustration. "Now
Charging . . ." will blink in the display while the battery
is being charged. When charging is finished (approxi-
mately five hours), the display will change to indicate
"Complete" and the BUSY/TX indicator will blink blue.
Important Notes:
 Do not leave the charger connected to the trans-
ceiver for continuous periods in excess of 24 hours.
Long term overcharging can degrade the Li-Ion bat-
tery pack and significantly shorten its useful life.
 If using a charger other than the PA-48B/C, or if
using a battery pack other than the FNB-80LI, fol-
low the appropriate instructions provided with the
charger/battery. Contact your Dealer if you have any
doubts about the appropriateness of the particular
charger or battery pack you intend to use.
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