Battery Charger; Names And Functions Of Parts - Yamaha JW-II Service Manual

Battery Charger

•
The XA4 charger (JWC-2) is a dedicated charger made specifically for the XA4 bat-
tery, and is designed to extend the service life of the battery and to enable faster
charging.
Contact points (4 locations)
Battery insertion port
Display lamps (2 locations)
Function 1. 4-stage charging method
1 Preliminary charging: If the battery voltage is unusually low, a low current level is used when
2 Fast charging:
3 Follow-up charging: When the battery is warm from being charged, charging is done at a low
4 Trickle charging:
NOTE:
•
If the battery has just been shipped, or if it has been deeply discharged, charging takes approximately
120 to 130% longer than ordinary charging.
•
If the battery was charged when hot, and follow-up charging was done in order to supplement the
ordinary charging, charging may take up to 1.5 hours longer than ordinary charging in some cases.
If this happens, the uppermost stage of the capacity display (the fully-charged side) may flash for a
longer time period because of the longer charging time.
Grip
charging is first begun.
Charging is carried out in approximately 2.5 hours, starting from a com-
pletely discharged battery.
current level following fast charging, to supplement the amount of charging.
Charging is done with a tiny amount of current following methods 2 and 3,
to compensate for the amount consumed through self-discharging.

Names and Functions of Parts

Intake ports (2 locations)
35
Exhaust port
AC cord (detachable type)
Refresh switch