Installation of FNB-80LI Battery Pack
The FNB-80LIis a high-performance Lithium-Ion battery providing high capacity in a very compact package. Under normal use, the FNB-80LImay be used for approximately 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 di- minished, you should replace the pack with a new one.
rInstall the FNB-80LIas shown in the illustration.
rClose the Battery Pack Latch on the bottom of the radio.
Do not attempt to open any of the rechargeable LI-ion packs, as personal injury or damage to the LI-ion pack could occur if a cell or cells become
accidentally short-circuited.
Battery Charging
If the battery has never been used, or its charge is depleted, it may be charged by connecting the NC-72B/CBattery Charger, as shown in the illustration, to the EXT DC jack. If only 12 ~ 16 Volt DC power is 
available, the optional E-DC-5BDC Cable (w/cigarette lighter plug) or E-DC-6DC Cable may also be used for charging the bat- tery, as shown in the illustration.
The “Now Charging . . .” will
blink in the display while the battery is being charged. When charging is finished, 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 transceiver for continuous periods in excess of 24 hours. Long term overcharging can degrade the LI-ion battery pack and significantly shorten its useful life.
¦If using a charger other than the NC-72B/C, or if us- ing a battery pack other than the FNB-80LI, follow 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.
