E6
Flymo Battery Voltage Too Low / Battery Protection

Robot mower shows E6 and refuses to start mowing; may occur after winter storage or long downtime.

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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

Deeply discharged battery pack, Aged lithium‑ion battery cells, Poor contact at battery connector, Faulty battery management circuitry on main PCB

How to Fix / Troubleshooting

Safety first: Turn OFF the mower and remove it from the lawn. Do not attempt to open the battery pack casing yourself.

  • Charge fully: Place the mower in the charging station and ensure the station LED indicates charging. Leave it on charge for at least 12–24 hours, especially after long storage.
  • Check contacts: Inspect the charging contacts on the mower and station for corrosion or dirt. Clean gently with a dry cloth.
  • Warm up cold batteries: If the mower has been stored in a very cold shed, bring it indoors to room temperature for several hours, then attempt charging again.
  • Battery age: If the mower is several seasons old and runtime is very short, the internal battery pack may have reached end of life and require replacement with a Flymo‑specified pack.
  • Persistent E6: If E6 remains after extended charging and contact cleaning, the battery pack or charging electronics may be faulty. Replacement of the battery pack is usually the first step.
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Repair Difficulty

Medium 3/5

Required Part

Battery Pack
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