Lifan
Battery Charging System Failure
Generator runs but battery does not stay charged between exercise cycles.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed onboard battery charger, Blown charger fuse, Loose charger wiring, Sulfated battery drawing excessive current
How to Fix / Troubleshooting
Safety first: Turn OFF the generator and disconnect battery negative before servicing the charging system.
- Measure float voltage: With utility power present and generator off, measure battery voltage. It should be around 13.2–13.8 V if the charger is working.
- Check charger fuse: Locate and test the fuse protecting the Lifan battery charger. Replace any blown charger fuse.
- Inspect charger wiring: Ensure AC input and DC output wires to the charger are secure and not corroded.
- Replace charger or battery: If the charger has no output, replace the battery charger module. If the charger overheats or current is very high, test and replace the starting battery if it is sulfated.
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Repair Difficulty
Medium
3/5
Required Part
Battery Charger Module
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