Perfectpro HANDSFREE HF1 数据表

The approximate power level of the batteries is displayed in the LCD display of the radio. 

When the power level is very low, the indication “Battery Low!” appears and the battery 

symbol flashes on the display. The batteries should then be recharged or replaced soon

to continue normal operation of the radio. 

When the rechargeable NiMH batteries are being charged. The battery symbol in the 

LCD display will animate. The charging and animation will stop automatically when the 

batteries are full.

Back-up batteries are used to back up the time memory when no 6 x D battery power 

is used. It is necessary to insert back up batteries (2 x AA size / UM-3) for time memory

back up if you use AC power supply only. Without the back up batteries time memory 

will be lost if you remove the AC power cord from AC socket or during power failure. The 

back up batteries will not be charged and should be replaced after 1 year. 

The battery charger uses a fuse as a safety device, which protects the radio from 

over current or excessive surging during the charging process. The fuse will blow if 

something goes wrong with the charger or the battery (for example, if the battery has 

been damaged). In case the charger refuses to charge the battery or the radio becomes

inoperative with batteries, you should check and replace the battery and/or the fuse. 

1.  Turn off the radio and unplug the AC power cord from the mains power socket. 

2.  To open the battery compartment, turn the battery cover fixtures counter clockwise

 

to loosen and pull down the battery cover. 

3.  Check the batteries carefully and make sure all of them are installed with correct 

polarity (+ and -) and replace the batteries if there is any damage. Refer

 

to the section of “IMPORTANT INFORMATION ON CHARGING AND USING  

 

RECHARGEABLE BATTERIES” for more detailed advises. 

4.  Locate the fuse holder in the battery compartment. The cover of the fuse holder has  

 

the word “FUSE” on it. 

5.  To remove the fuse cover, use a slot head screwdriver and turn the screwdriver  

 

counter clockwise while pressing down the fuse cover. The fuse cover should be  

 

turned only when it is pressed down. Do not use too much force when turning the  

 

fuse cover as this can cause damage.

6.  Replace the blown fuse with an identical new one. The fuse rating is printed beside  

the fuse holder (T4AL 250V). Do not use fuse of any other type.

7.  Replace the fuse cover using a slot head screwdriver. Turn the screwdriver    

 

clockwise carefully while pressing down the fuse cover. 

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  If the new fuse blows again as soon as the radio is connected to AC power or when  

 

you start using the radio, it indicates a problem with either the radio or the battery.  

Have them checked at a dealer or qualified service person.

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  The fuse also protects Alkaline batteries from over current. 

Danger of explosion if a battery is incorrectly replaced. Replace only with the same or 

equivalent type. 

Always make sure the Battery charger switch is set to the correct position. 

An Alkaline battery is not rechargeable. Never attempt charging Alkaline batteries. 

Do not mix up different battery types. 

Do not mix up charged and uncharged batteries.  

Do not expose the batteries to excessive heat such as sunshine, fire or the like.

Batteries should not be disposed of by incineration and with household waste. 

Disposable batteries should be taken to a suitable recycling centre if possible.

1. 

2.  Make sure the Battery charger switch next the battery compartment is set to the  

 “

CHARGE NiMH ON” position. 

3. 

4. 

they are full. This first charge may take longer than normal. For longer battery life it

 

is advised to always recharge in one continuous, uninterrupted charge until batteries 

 

are full and to not recharge again whilst the batteries are still full. 

5.  New batteries will only reach their full capacity after some time of use (several  

charge – discharge cycles).

6.  Leave the complete group of batteries in place inside the radio and do not use these 

batteries or a few of them for other purposes. This will result in a mix of (fully)

charged and (partly) empty batteries. This can seriously damage the batteries and

 

radio when recharged. 

7.  It is advised to only charge batteries at room temperatures between 5 degrees C –  

 

35 degrees C. In lower or higher temperatures full charge cannot be achieved. 

G B