Chrysler 1998 Voyager Service Manual page 257

NS
DIAGNOSIS AND TESTING (Continued)
Fig. 5 Milliampere Meter Connection
clean. If green dot is not visible in indicator, charge
the battery. Refer to Battery Charging Procedures.
(2) Connect a Volt/Ammeter/Load tester to the bat-
tery posts (Fig. 6). Rotate the load control knob of the
Carbon pile rheostat to apply a 300 amp load. Apply
this load for 15 seconds to remove the surface charge
from the battery, and return the control knob to off
(Fig. 7).
Fig. 6 Volt-Ammeter Load Tester Connections
(3) Allow the battery to stabilize for 2 minutes,
and then verify open circuit voltage.
(4) Rotate the load control knob on the tester to
maintain 50% of the battery cold crank rating for 15
seconds (Fig. 8). Record the loaded voltage reading
and return the load control to off. Refer to the Bat-
tery Specifications at the rear of this Group.
(5) Voltage drop will vary according to battery
temperature at the time of the load test. Battery
Fig. 7 Remove Surface Charge From Battery
Fig. 8 Load 50% Cold Crank Rating
temperature can be estimated by the temperature of
exposure over the preceding several hours. If the bat-
tery has been charged or boosted a few minutes prior
to the test, the battery would be slightly warmer.
Refer to Battery Load Test Temperature Table:
BATTERY LOAD TEST TEMPERATURE
Minimum Voltage
9.6 volts 70° and above
9.5 volts
9.4 volts
9.3 volts
9.1 volts
8.9 volts
8.7 volts
8.5 volts
(6) If battery passes load test, it is in good condi-
tion and further tests are not necessary. If it fails
load test, it should be replaced.
BATTERY 8A - 5
Temperature
°F °C
21° and above
60° 16°
50° 10°
40° 4°
30° -1°
20° -7°
10° -12°
0° -18°