17Basic OperationPreparationInstalling/Removing the Battery PackInstalling the Battery Pack1 Insert the bottom tabs of the battery pack in the slotsat the bottom of the transceiver.2 Push the battery in until the latches click securely.Caution When you use the transceiver for the first time after purchaseor you have not used it for a long period, charge the batterypack before use.Removing the Battery Pack1 While pushing down and releasing the latches,remove the battery pack, as shown in the batterypack removal illustration.Caution When releasing the battery latches, be careful not to hurt yourfingers and nails.Charging the Battery PackCautions The battery pack is rechargeable about 300 times. However, improper use such as overcharge orover-discharge can shorten its service life. The battery pack is a consumable item. Recharging the battery pack repeatedly will graduallyshorten the duration of its usage. If the transceiver is not used for a long period with the battery pack installed, deterioration of thebattery pack can accelerate. If you do not use the transceiver for a long period, be sure to store it with the battery pack removed.Even if you do not use the transceiver for a long period, install the battery pack biannually andrecharge the battery pack about 50% to prevent it from over-discharging. Storing the battery pack in a high-temperature place can deteriorate it faster than usual. Store thebattery pack in a place where the ambient temperature is –20 °C to +50 °C (–4 °F to +122 °F). Do not drop or give a strong shock to the battery pack. It can break.Tips• The battery pack contains lithium-ion batteries that can be recharged for repetitive use.• The transceiver can be used with either of the following battery packs:(1) Accessory: FNB-101LI (7.4 V, 1,100 mAh)(2) Option: FNB-102LI (7.4 V, 1,800 mAh)• When the battery pack is recharged, its output voltage (about 8 V) becomes higher than thespecified value (7.4 V). This is not a failure.Lock dialsPush down on the latches in thedirection of the arrow.
