Battery Charging

1. Use a charger, with an end voltage of 16 The DTC, equipped with a voltmeter that is accurate to within 1 percent.
The ambient temperature should be 15 - 38 ° Cycles if (60 - 100 ° F).A battery that is extremely cold will not accept immeasurable current for several hours after starting the charger.
2. The charging area should be well ventilated.
3. Do not charge the battery when the built in hydrometer is clear or yellow (C). Replace the battery if there is a cranking problem.
4. Do not charge a battery that appears to be frozen.
5. Batteries showing a green dot in the hydrometer (A) do not need to be charged unless they have just been discharged (such as cranking the engine).

Charging Time Required
The time required to charge a battery will vary depending upon the following factors:
- The size of the battery - A completely discharged, large,heavy-duty battery requires more than twice the recharging time as a completely discharged, smaller battery.
- The temperature - A longer time is needed to charge any battery at 18 ° Cycles if (0 °F) than at 27 ° Cycles if (80 ° F). When a fast charger is connected to a cold battery, the current accepted by the battery is very low at first. Then, as the battery warms, the battery accepts a higher rate of current.
- The charging capacity - A charger which can supply only five amperes requires a much longer charging period than a charger that can supply 30 amperes or more.
- The state-of-charge - A completely discharged battery requires more than twice as much charge time as a half charged battery. Because the electrolyte is nearly pure water and a poor conductor in a completely discharged battery, the battery accepts very low current at first. Later, as the charging current causes the electrolyte acid content to increase, the charging current also increases.