Official Levoit Battery: Specially designed for the Levoit LSV-V201-WUS Cordless Stick Vacuum. Always use the official Levoit battery to optimize product performance. Increased Runtime: With the ability to swap in an extra battery, you can easily clean the whole house for up to 100 minutes without having to wait for the battery to recharge. Removeable, Rechargeable & Replaceable: Simply press the Battery Release Button and remove the battery. To reinstall, slide the battery into the slot in the vacuum body. Easy to Charge: Charge the battery by inserting the charger into the charging port on the battery while hanging the vacuum on the wall mount. Or charge it separately by the charger. Safe & Certified: This battery has been tested in accordance with the ANSI/UL 2595-Standard for Safety General Requirements for General Requirements for Battery-Powered Appliances.