Kärcher
Battery Overheating / Venting Risk
Cordless vacuum emits a strong chemical or electrical smell from the battery area
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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
Internal short in Li‑Ion battery pack, Overheating due to blocked vents, Use of non‑original or damaged battery, Charger malfunction causing overcharge
How to Fix / Troubleshooting
Safety first: Immediately switch OFF the vacuum and remove the battery. Move the battery to a non‑flammable surface away from flammable materials. Do not touch a hot or swollen battery with bare hands.
- Allow to cool: Let the battery cool in a safe area. Do not attempt to charge or use it again.
- Inspect battery: If the pack is swollen, cracked, or leaking, do not reuse. Follow local regulations for hazardous waste disposal.
- Check charger: Do not use the same charger with a new battery until it has been tested or replaced.
- Replace battery: Use only an original Kärcher replacement battery pack of the correct type.
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Repair Difficulty
Medium
3/5
Required Part
Li-Ion Battery Pack
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