Product Features: 🔋【Replacement for Dyson V8 Battery】fit for Dyson V8 series vacuum cleaners; Upgraded 21.6V lithium battery provides longer life than the original battery to clean your house fully. 🔋【Our Advantages】The indicator on the battery is made of 3 separated LED lights. Built-in integratedmicrochip prevents overload, overcharging, self-discharge and lengthens battery life. 🔋【 No Memory Effects】Can be charged or discharged as needed without loss of capacity.Built-in circuit protection ensures both safety and stability. 🔋【Safe & Reliable】Certificated via CE; FCC; RoHS Product Specifications: 1.Intelligent program protection prevents from over charge 2.High quality replacement battery 3.Compatibility with the original 4.Lower Price than Original Battery.