EXPORT POWERDRIVE CHARGER (ONBOARD)
Checking Battery Condition
Page 4-8
2008 Export Battery Charger Maintenance and Service Manual
4
CHECKING BATTERY CONDITION
See General Warning, Section 1, Page 1-1.
It is common practice for technicians to check the condition of a set of batteries after they have been charged
to ensure they have received a complete charge before the vehicle is used. With the PowerDrive battery
charger this practice is not necessary. The onboard computer controls and monitors the charge cycle. If any
problem occurs during a charge cycle, the battery warning light, located above the steering column in the cen-
ter dash panel, will illuminate intermittently.
If the battery warning light is illuminated after a charge cycle, refer to the troubleshooting chart.
See Trouble-
shooting on page 4-9.
If the specified test procedures identify no problems, plug the AC cord into a wall out-
let and let it charge until the charger shuts off automatically. If a problem is found, correct it and charge the
vehicle. Normal battery voltage near the end of a charge cycle should be approximately 59 to 63 volts DC
while the charger is still operating.
Start Charge Cycle
1. Disconnect the AC plug from the wall outlet.
2. Wait 20 seconds, then reconnect the AC cord to the wall outlet.
See following NOTE.
NOTE:
The charger will not operate unless a delay of approximately 20 seconds is observed.
3. Monitor the ammeter for the charge rate. If the vehicle has not been driven since the last charge cycle
and the batteries are fully charged, the onboard computer will not perform a self-diagnostic test. The
charge cycle will begin and the ammeter will not drop to zero. If the vehicle has been driven, even if only
a few feet, the onboard computer will perform the self-diagnostic test; the ammeter will drop to zero for
2 to 3 seconds before the charge cycle continues. If the batteries are close to being fully charged, the
charge cycle will begin and the charge current will begin to taper within a few minutes.
TROUBLESHOOTING
See General Warning, Section 1, Page 1-1.
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DANGER
• Do not touch any wire or component in the battery charger while AC power is present. Failure
to heed this warning will result in an electric shock.
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WARNING
• Knowledge of battery charger wiring and component terminology is required before
attempting any repair (Figure 4-5, Page 4-7).
• Prior to servicing the charger, disconnect the AC power supply cord from the wall outlet,
disconnect the DC cord from the vehicle, and remove the battery charger from the vehicle.
See Onboard Charger Removal on page 4-35.
Use the following Troubleshooting Guide for troubleshooting export PowerDrive onboard battery chargers
(model numbers 17790-10 and 17790-40). The Troubleshooting Guide encompasses the entire battery
charging circuit. Test procedures specified in the Troubleshooting Guide can be found on the following pages.
