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The ambient temperature should be 15-38°C (60-100°F). A battery that is extremely cold will not accept immeasurable current for several hours after starting the charger. |
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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°C (0°F) than at 27°C (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. |
On-Vehicle Charging Procedure (Side Terminal Batteries)
Notice: Turn OFF the ignition when connecting or disconnecting the battery cables, the battery charger or the jumper cables. Failure to do so may damage the PCM or other electronic components.
Important: Do not charge a battery with a green hydrometer dot unless the battery has just been discharged, such as in cranking.
- Turn OFF the charger.
- Connect the charger positive lead to the positive cable terminal located in the engine compartment on the right side.
- Connect the negative charger lead to a solid engine ground, such as the generator mounting bracket.
Off-Vehicle Charging Procedure (Side Terminal Batteries)
Tools Required
Battery Terminal Adapters
Notice: Turn OFF the ignition when connecting or disconnecting the battery cables, the battery charger or the jumper cables. Failure to do so may damage the PCM or other electronic components.
Important: Do not charge a battery with a green hydrometer dot unless the battery has just been discharged, such as in cranking.
- Install battery side terminal adapters.
- Ensure that all battery terminals are clean and tight.
- Charge the battery until the hydrometer has a green dot.
- Inspect the battery every half hour after starting the battery charger.
- Tap the hydrometer lightly to dislodge any air bubbles. The bubbles may cause a false indication.
- After charging, test the battery. Refer to Battery Not Operating Properly .
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten the battery side terminal adapters to 15 N·m (11 lb ft).
Best results occur when charging a battery that is at room temperature. A battery that is extremely cold may not accept current for several hours.
