Battery Charging; On-Vehicle Service - Isuzu NHR 4J Series Workshop Manual

6D1 – 4 ENGINE ELECTRICAL

ON-VEHICLE SERVICE

BATTERY CHARGING

Observe the following safety precautions when charging
the battery:
1. Never attempt to charge the battery when the fluid
level is below the lower level line on the side of the
battery. In this case, the battery must be replaced.
2. Pay close attention to the battery during the charging
procedure.
Battery charging should be discontinued or the rate of
charge reduced if the battery feels hot to the touch.
Battery charging should be discontinued or the rate of
charge reduced if the battery begins to gas or spew
electrolyte from the vent holes.
3. In order to more easily view the hydrometer blue dot or
ring, it may be necessary to jiggle or tilt the battery.
4. Battery temperature can have a great effect on battery
charging capacity.
5. The sealed battery used on this vehicle may be either
quick-charged or slow-charged in the same manner as
other batteries.
Whichever method you decide to use, be sure that you
completely charge the battery. Never partially charge
the battery.