Vacuum shows E13; battery percentage reading is erratic or stuck

Safety first: Ensure the vacuum is in a safe, dry area while performing calibration. Do not leave it unattended on soft surfaces while running.

• Step 1 – Fully charge: Charge the Camry cordless vacuum until the display shows 100% and the charger indicates full.
• Step 2 – Controlled discharge: Use the vacuum continuously on a medium setting until it shuts off automatically from low battery. Avoid MAX mode to prevent overheating.
• Step 3 – Cool and recharge: Let the vacuum cool for 30 minutes, then fully recharge to 100% without interruption. This can recalibrate the battery gauge.
• Step 4 – Observe behavior: If the percentage now drops smoothly during use, the issue is resolved.
• When to stop: If E13 persists or the gauge remains inaccurate, the Camry lithium‑ion battery pack fuel gauge circuit is likely faulty and the pack should be replaced.