Worx Vision M800 (WR208E): Battery Charging Error

Use this diagnostic path to narrow the fault before buying parts. MowerFixAI is independent and does not claim manufacturer endorsement.

Error/code: E7

Likely causes

Charging system

Before replacing anything

Confirm the symptom is repeatable. Note whether it occurs at startup, during mowing, under cutting load, while returning to the dock, or only in one part of the lawn. Change one variable at a time and retest.

Step-by-step diagnostic procedure

Confirm base power, correct docking and clean charging contacts. Do not replace the battery until station/contact faults are excluded.

If the mower behaves normally after one step, stop there and monitor it before replacing parts.

Safety and escalation

Stop the mower and follow the manufacturer shutdown/isolation procedure before touching blades, wheels, charging contacts or internal components.
Do not open mains-powered adapters or charging-station electronics; dealer/electrician diagnosis is recommended for mains-side faults.

Stop if the next step requires mains-voltage work, opening sealed electronics, battery-pack disassembly or a proprietary service tool. Use an appropriately qualified dealer for those procedures.

Parts that may be involved

No replacement part should be ordered until the fault is isolated; inspect model-specific components named in the diagnostic procedure.

Do not order a part from the error message alone. A related component is not proof that the component has failed.

Evidence and model applicability

Grade A — Exact manufacturer evidence

{'model': 'Vision M800 (WR208E)', 'family': 'Landroid Vision family', 'scope': 'Manufacturer/product-family corroboration; exact menu names, limits and part numbers must be confirmed for this model.'}

Source: Worx official support

If the fault is intermittent

Capture the exact message, LED state, battery percentage and mower location when it happens. Intermittent faults are often easier to isolate from the conditions surrounding the failure than from a restart after the event.

Run the complete model-aware diagnosis

Continue through MowerFixAI's interactive diagnostic workflow to compare this fault with related symptoms and next checks.

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