Henry Battery Gauge Calibration Issue

LED battery indicator on the vacuum does not match actual run time

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Possible Causes

Battery not fully charged before use, Incomplete charge cycles, Ageing battery cells, Control PCB gauge miscalibration

How to Fix / Troubleshooting

Safety first: Use only the original Henry cordless charger.

Step-by-step:

  • 1. Perform a full charge: Charge the battery until the charger indicates full, then leave it connected for an additional hour.
  • 2. Full discharge: Use the vacuum continuously in low mode until it stops on low battery.
  • 3. Repeat cycle: Perform one or two full charge/discharge cycles to help the gauge recalibrate.

If the indicator remains inaccurate and run time is also reduced, the battery pack may be degraded and should be replaced.

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Repair Difficulty

Very Easy 1/5

Required Part

Henry Cordless Battery Pack
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