Wide compatibility: A practical replacement for the original battery, providing long lasting performance across compatible devices. capacity Liion battery: Made with Liion cells for powerful performance and extended runtime. Ideal for large area cleaning without frequent recharging. Safe and reliable: Built in multiple protection systems including overcharge, overdischarge, short circuit, and temperature control to ensure safe operation and prolong battery life. Easy to use: No complicated setup required; simple installation and ready to use once fully charged. Use scenarios: In robot vacuums or cordless cleaners for large area cleaning, reducing the need for frequent recharging. As a replacement battery for compatible devices to maintain consistent cleaning performance. As a spare backup battery for commercial or demand cleaning tasks to minimize downtime.