TRUCK SERVICE MANUAL
Fig. 12 Testing Specific Gravity
STEP 3. BATTERY CAPACITY (LOAD) TEST
Perform battery capacity (load) test using battery test
equipment available commercially.
Always follow manufacturer's instructions and
precautions when using battery test equipment.
A satisfactory capacity (load) test can be made
only when battery electrolyte equals or exceeds
1.225 specific gravity when corrected to 26.7° C
a. Disconnect battery cables from battery. (Disconnect
ground cable first.)
b. Connect tester leads to battery terminals following tester
Fig. 13 Battery Tester
c. Apply specified test load to battery for 15 seconds or as
specified in tester instructions.
Test load (amperes) is equal to one half of the cold
cranking amperes @ -18° C (0° F) rating of the battery.
Specified test loads for "Fleetrite" and "International"
batteries are listed in SPECIFICATIONS.
d. Note voltage reading after 15 seconds (or other specified
time interval) under load. Then remove load.
If voltage reading under load is less than permissible
minimums at temperatures listed in Table 5, replace the
If voltage meets or exceeds permissible minimum listed
in Table 5, clean the battery and return it to service.
PRINTED IN UNITED STATES OF AMERICA