3. A battery protection feature is provided with the IPD-4500 system, and when the "warning, needs 
charging" red indicator light is on, it indicates that the system will enter the automatic shut-off mode and 
needs to be charged before it can be restarted for use. In this case the system may exhibit distorted 
sound or abnormal functioning and the battery needs to be fully recharged before operating the IPD-4500.  
The system should return to normal after charging. 
 
4.  hen the IPD-4500 system is charging, the power level indicator light is green and flashes.  hen the 
indicator light is  green but does not flash anymore, this shows that  there is sufficient power. In normal 
conditions, it takes about  7 hours from   [red light] to   [green light] when the power switch is 
set to the  “ON”  position,  and it takes 4.5 hours to  finish charging when the power switch  is  set to  the 
“OFF” position. 
 hen  using  the  NI-MH  as  the  power  supply,  in  normal  use  the  duration  of  IPD-4500  continuous  play 
depends on the volume at which the music is played. At normal volume, it can be operated continuously 
for over 8 hours. 
5. If  the  internal rechargeable batteries cannot be recharged  or the  playing time is  extremely short, it 
indicates  that  the  service  life  of  the  batteries  have  ended,  and  they  need  to  be  replaced  with  new 
batteries. (Please refer to the battery replacement instructions.) 
6. Due to  the intrinsic limitations of  rechargeable  batteries, we would like to make users aware of the 
following: 
  ● Do not expose the batteries to heat or place them over an open flame. Otherwise, the batteries 
will leak or explode. 
  ●  Do  not  disassemble  the  batteries.  The  alkaline  liquid  inside  is  highly  corrosive  and  may  cause 
injury. 
  ● Do not short-circuit the batteries. 
  ● Do not place the batteries in a closed container. 
  ● Do not swallow the batteries. 
  ● Do not use the batteries with reversed polarities. 
  ● Do not mix old and new batteries. In particular, do not mix with nickel-cadmium batteries, dry cell 
batteries, etc.  
  ● Do not use a battery if it is leaking, is deformed, or has other abnormalities. 
  ● Do not place the batteries in water, which will affect their performance. 
  ● If the main unit will not be used for a long time, remove the batteries from the main unit. During 
long-term storage, charge and discharge the batteries once a month. 
  ● Use the batteries after they are fully charged. Do not charge batteries at temperatures lower than 
0°C or higher than 40°C. Do  not charge  or discharge batteries using current not of the specified 
range.  
  ● Keep the batteries away from infants and children. Do not let a child use the batteries unless he or 
she understands how to use them correctly.  
  ● If it is necessary to change two or more batteries at the same time, please fully charge all of the 
batteries  before  use  and store the  batteries  in  a  cool,  dry  place.  Storage  conditions:  Batteries 
should  be  stored  in  an  environment  with  a  temperature  of  10-35°C  and  humidity  ≤  80%.  The 
temperature for long-term storage (3 months or longer) should be 10-25°C.  
  ● Do not forcefully strike, shake, or press the batteries. 
 
7. Specifications of the batteries: 
Nominal Voltage: 4.8V (AA 1.2V * 4 each) 
Nominal Capacity: 1500mAh/each 
GB/T15100.2-2003/IEC61951-2:2003 
 
 
If at any time in the future you should need to dispose of this product please 
Note that: aste electrical products should not be disposed of with household waste.Please 
recycle  where  facilities  exist.Check  with  your  Local  Authority  or  retailer  for  recycling 
advice.( aste Electrical and Electronic Equipment Directive)