grand dink 125 mmc Workshop-manual : Page 214

          16. BATTERY/CHARGING SYSTEM                                                     GRAND DINK 125/150



 SERVICE INFORMATION
 GENERAL INSTRUCTIONS
 The battery electrolyte (sulfuric acid) is poisonous and may seriously damage the skin and
    eyes. Avoid contact with skin, eyes, or clothing.      In case of contact, flush with water and
    get prompt medical attention
 · The battery can be charged and discharged repeatedly. If a discharged battery is not used for a
   long time, its service life will be shortened. Generally, the capacity of a battery will decrease
   after it is used for 23 years. A capacity-decreased battery will resume its voltage after it is
   recharged but its voltage decreases suddenly and then increases when a load is added.
 · When a battery is overcharged, some symptoms can be found. If there is a short circuit inside
   the battery, no voltage is produced on the battery terminals. If the rectifier won`t operate, the
   voltage will become too high and shorten the battery service life.
 · If a battery is not used for a long time, it will discharge by itself and should be recharged every 3
   months.
 · A new battery filled with electrolyte will generate voltage within a certain time and it should be
   recharged when the capacity is insufficient. Recharging a new battery will prolong its service life.
 · Inspect the charging system according to the sequence specified in the Troubleshooting.
 · Do not disconnect and soon reconnect the power of any electrical equipment because the electronic
   parts in the regulator/rectifier will be damaged. Turn off the ignition switch before operation.
 · It is not necessary to check the MF battery electrolyte or fill with distilled water.
 · Check the load of the whole charging system.
 · Do not quick charge the battery. Quick charging should only be done in an emergency.
 · Remove the battery from the motorcycle for charging.
 · When replacing the battery, do not use a traditional battery.
 · When charging, check the voltage with an electric tester.

 SPECIFICATIONS
                             Item                                           Standard
                                    Capacity                                12V8AH
                           Voltage          Fully charged                    13.2V
       Battery              (20)            Undercharged                     12.3V
                                Charging current                     STD: 0.9A Quick: 4.0A
                                 Charging time                     STD: 5-10hr Quick: 30min
                                    Capacity                             160W/500rpm
   A.C. Generator         Charging coil resistance (20)         YellowYellow         0.61.6
                                  Charging rpm                         1300rpm max (14V)
                              Charging performance                      8A min/5000rpm
 Regulator/Rectifier                Limit voltage                            14.50.5V

 TESTING INSTRUMENTS                                 TORQUE VALUES
 Ammeter                                             Pulser coil bolt 4.9N-m
 Electric tester                                     Coil lock bolt   8.8N-m
 Tachometer                                          Flywheel nut     34.344.1N-m


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