Features: Engineered for A10 series cordless vacuums, this 21.6V 3500mAh replacement battery delivers up to 60 minutes of continuous runtimes, offering 20% longer cleaning power than standard batteries for thorough home or office maintenance. Featuring advanced fast charging technology (4-5 hours) and high performances cells, it ensures heat resistant stability and shockproof durability while maintaining a lightweight, user friendly design. Perfect for pet owners battling stubborn, busy households managing multi surfaces cleaning, and professionals maintaining spotless commercial spaces with cordless convenience. Effortlessly tackles carpets, hardwood floors, and tight corners in residential or light duty commercial environments, ensuring consistent suction for dust, debris, and allergen removal. Designed with materials and rigorous safety standards, it eliminates memory effect while delivering 30% high energy density than traditional batteries for stable, easy maintenance operations. Specifications: Voltages: 21.6V Battery Capacity: 3500mAh Component: Plastic Color: White Applicable Model: For A10 HSA17 HSA02 Size: Approx. 3.15x5.43x1.89inch(8x13.8x4.8cm) Package Includes: 1x Sweeping Robot Replacement Battery note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.