Safety: Unplug the charger and remove the battery before inspecting contacts. Do not short any terminals.

1. Inspect contacts: Look at the metal contacts on both the battery pack and the vacuum handle. If they are dirty or oxidized, gently clean them with a dry microfiber cloth. Do not use water or abrasive materials.
2. Check for bent pins: Some SilverCrest packs have a smaller data/communication pin. Ensure it is straight and not recessed. If slightly bent, carefully straighten it with plastic tweezers.
3. Reseat battery: Insert the battery firmly until it clicks. Remove and reinsert it a few times to ensure a good connection.
4. Test with another battery/charger: If available, try a different compatible SilverCrest battery. If the error disappears, the original pack is likely faulty. If the error persists with multiple packs, the vacuum’s main PCB may be at fault.
5. Avoid DIY pack opening: Do not open the battery casing; this can be dangerous and voids warranty.

If E5 persists, the battery pack or main control board will likely need replacement by a qualified technician.

Vacuum does not recognize the battery; display shows E5 or battery icon with a cross

Possible Causes