
CHASSIS ELECTRICAL –
Battery
54-5
BATTERY TESTING PROCEDURE
TEST STEP
(1) Turn headlamps on for 15 seconds.
(2) Turn headlamps off for 2 minutes to allow battery voltage to
stabilize.
(3) Disconnect cables.
Read open circuit voltage.
OK: Open circuit voltage is more than 12.4 V
NG
Charge battery at 5 amps. (see LOAD TEST RATE CHART)
Retest
OK
(1) Connect a load tester to the battery.
(2) Load the battery at the recommended discharge rate (see LOAD
TEST RATE CHART).
(3) Read voltage after 15 seconds, then remove load.
(4) Compare the measured value with the minimum voltage (see
LOAD TEST CHART).
OK: Higher than minimum voltage
NG
Replace battery
OK
Normal
LOAD TEST RATE CHART
Battery type
28B19L
34B19L
44B20L
95D31L
55D23L
55B24L
Charging time when fully discharged h
[5-amp rated current charging]
5
6
7
13
10
8
Load test (Amps)
120
130
160
310
170
170
LOAD TEST CHART
Temperature
_
C
21 and
above
16 to
20
10 to
15
4 to 9
–1 to 3
–7 to
–2
–12 to
–8
–18 to
–13
Minimum voltage V
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5