Load Test - Isuzu NHR 4J Series Workshop Manual

4. LOAD TEST

(1) Connect a voltmeter and a battery load tester across
the battery terminals.
(2) Apply 300 ampere load for 15 seconds to remove
surface charge from the battery.
Remove load.
(3) Wait 15 seconds to let battery recover. Then apply
specified load from specifications (See Main Data and
Specifications in this section).
Read voltage after 15 seconds, then remove load.
a. VOLTAGE DOES NOT DROP BELOW THE
MINIMUM LISTED IN FOLLOWING TABLE - The
battery is good and should be returned to service.
b. VOLTAGE IS LESS THAN MINIMUM LISTED -
Replace battery.
ESTIMATED TEMPERATURE
°F
70
60
50
40
30
20
10
0
The battery temperature must be estimated by feel and by the
temperature the battery has been exposed to for the
preceding few hours.
ENGINE ELECTRICAL 6D1 – 3
MINIMUM VOLTAGE
°C
21
16
10
4
-1
-7
-12
-18
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5