Compatible with Xiaomi and Mijia S9 vacuum robots 14.4V lithium battery with capacity options of 5200mAh or 5800mAh Specifically designed as a charging battery for Mijia S9 and compatible Xiaomi models Fast charging for improved efficiency Supports fast charging technology, significantly reducing charging time compared with traditional batteries Helps you get back to cleaning sooner without long downtime No memory effect, easy to use Lithium battery with no memory effect Can be charged as it is used, without needing full discharges prior to charging Long cycle life to reduce costs Typically supports thousands of charge/discharge cycles Higher cycle life than leadacid alternatives, helping lower replacement costs over time Use scenarios Regular home cleaning: or upgrade the robot battery to ensure quick startup and reliable power for daily cleaning routines Multiroom or large homes: maintain longer cleaning sessions with dependable runtime, reducing the need for frequent recharges Professional or heavyduty tasks: support extended cleaning jobs without frequent battery changes, improving efficiency Key attributes Function: vacuum robot charging battery Compatibility: Xiaomi vacuum robots, Mijia S9 Voltage: 14.4V Capacity: 5200mAh or 5800mAh Material: lithium battery Performance: fast charging, no memory effect, cycle life