Lightweight design with strong vacuum power The product combines a lightweight form with powerful vacuum performance, making it easy to handle while delivering effective cleaning. Safety and charging guidance Built in safety protection system for safer operation. To maximize battery life, charge promptly when the battery level drops significantly, and avoid charging in temperature environments or near fire sources. Compatibility and power stability compatibility with a range of vacuum cleaners and stable voltage output. Keep battery contacts clean and ensure a smooth, unobstructed connection with the vacuum cleaner to guarantee stable power transmission and consistent cleaning. Convenience and storage Designed to fit multiple vacuum cleaner models and easy to install. When not in use for an extended period, keep the power level at a moderate level and store in a cool place to protect the battery. Use scenarios 1) Homes with multiple vacuum cleaners: quickly switch between units to keep cleaning across rooms without downtime. 2) Regular cleaning and maintenance: charge when power dips to prevent over discharge and maintain peak performance during intensive sessions. 3) Seasonal storage or travel: store in a cool place with a moderate charge to extend battery life during off seasons or trips.