BATTERY CAPACITY (LOAD) TEST
Perform battery capacity (load) test using battery test
equipment available commercially.
NOTE - Always follow manufacturers 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 spe-
cific gravity when corrected to 26.'7C (80°F).
Figure 13 -- Battery Tester
Disconnect battery cables from battery.
(Disconnect ground cable first.)
Connect tester leads to battery terminals follow-
ing tester manufacturer's instructions.
Apply specified test load to battery for 15 sec-
onds or as specified in tester instructions.
Test load (amperes) is equal to one-half of the
cold cranking amperes at - 1 8°C (9°F) rating of
Specified test loads for "Fleetrite" and "Interna-
tional" batteries are listed in SPECIFICATIONS.
Note voltage reading after 15 seconds (or other
specified time interval) under load. Then remove
If voltage reading under load is less than per-
missible minimums at temperatures listed in Ta-
ble 5, replace the battery.
If voltage meets or exceeds permissible mini-
mum listed in Table 5, clean the battery and
return it to service.
CAUTION - BEFORE ATTEMPTING TO CHARGE A
BATTERY, BE AWARE OF ALL THE PRECAUTIONS
TO BE FOLLOWED DURING THE CHARGING OP-
ERATION. REFER TO BATTERY CHARGING PRE-
CAUTIONS UNDER PRECAUTIONS.
ALWAYS FOLLOW BATTERY CHARGER MANU-
WHEN POSSIBLE, USE A BATTERY CHARGER WITH
ALTERNATOR OR POLARITY PROTECTION THAT
PREVENTS CHARGING THE BATTERY IN REVERSE
Two methods of recharging a battery, the Slow Charge
Method and the Fast Charge Method, are described
The charge a battery receives is equal to the charge rate
in amperes multiplied by the time in hours. Thus a five
ampere rate applied to a battery for ten hours would be a
50 ampere-hour charge to the battery. To fully recharge
a battery, you must replace the ampere-hours or
ampere-minutes removed from it, plus an extra
20%charge. This is due to the fact that batteries are not
100% efficient on recharging.
The Battery Charging Guides, Tables 6 and 7, show
approximately how much recharge a fully discharged
battery requires. For partially discharged batteries, re-
duce the charging current or charging time (ampere
For example: If the battery is 25% charged (75% dis-
charged), reduce charging current or time by one-fourth
(1/4). If the battery is 50% charged, reduce charging
current or time by one-half (1/2).
- 12o C
(70o F) &
12 Volt Battery
6 Volt Battery
Minimum Permissible Voltage
CTS-4111B - Page 12