Battery icon flashes with one bar and unit beeps, then shuts off quickly

Safety first: Allow the battery to cool before charging if the vacuum was just used.

• Step 1 – Full charge: Place the vacuum on the charger or dock and allow it to charge uninterrupted until the indicator shows full.
• Step 2 – Avoid deep discharge: Do not continue trying to run the vacuum after repeated B1 warnings; this can damage the cells.
• Step 3 – Storage check: If the vacuum has been stored for months, the battery may have self-discharged. Several full charge/discharge cycles (without fully draining) may help recover some capacity.
• Step 4 – Replace if needed: If runtime remains very short even after proper charging, replace the battery pack.