Replace the batteries if the results of
b, c,
or
d
above are
not acceptable.
Step 2
Verify that the BC-35 is providing a charging current.
a. If an MM-35 is being used in conjunction with a BC-35,
check the meter and verify that a current is being
supplied to the batteries either in a constant or a
pulsed mode.
b. If no MM-35 is being used, place an analog VOM meter
with a 10 amp scale in series with the batteries con-
nected to the BC-35 module. If the batteries are being
charged, the VOM meter will indicate a constant
current or pulsed current is being provided to the
batteries.
A constant charging current or pulsed charging current
is displayed if the battery voltage is between 18.3 VDC
and 27.7 VDC. Once the battery is fully charged, a
pulsed charging current is present on a periodic basis.
The time between pulses is determined by the rate of
discharge due to the internal circuitry of the charger
and the ability of the individual battery to accept and
maintain the charge condition. The constant charge
current is between .5 and 1.5 amps for the BC-35 and
increases proportionally if BE-35 modules are used.
On initial system startup, when the battery charger is
functional, but the battery trouble indicator remains on,
the batteries may not have had time to properly
charge—as much as 24 hours may be necessary for
charging. After charging for 24 hours with the charging
current as described above, and the BC-35 trouble
signal still on: