About This Battery Details: Capacity: 5000mAh | Voltage: 25.2V | Battery Type: Lithium-ion, Only applicable to V11 click-in models, not applicable to screw-type models.Please cool the battery before use and charging. Higher Capacity: Manufactured with original standard process, high-capacity battery cell design, 50% longer range than ordinary batteries.Significantly extends the running time of your vacuum cleaner while optimizing the charging and discharging efficiency to protect the life of the main unit. Perfect Compatibility: This product is only available for V11 latest Click in button model (Spring 2020 edition) and SV15/SV16 cordless vacuum cleaners. It is not suitable for V11 SV14 screw in model. Safety and Stability: Set protection system, overcharge, overdischarge, overcurrent, overheating, short circuit all-round protection. It can maximize the safety of use, extend the life of the battery, and make the charging process more safe and reliable. After- Sales Service: We offer 12 months product quality guarantee. Professional customer service team is online 24 hours a day, in case of any problems or questions, please feel free to contact us, we will be the first time to provide you with professional technical support and satisfactory solutions. Overview Number of Batteries : 1 Lithium Ion batteries required. (included) Brand : Ferncaex Battery Cell Composition : Lithium Ion Battery Capacity : 5 Amp Hours Recommended Uses For Product : Vacuum Cleaner