[[Battery specifications]: Capacity: 5000 mAh voltage: 25.2 V. Battery type: Replacement lithium-ion battery. DTK battery size and function completely match the original battery. Vacuum cleaner battery Vacuum cleaner accessories. [Perfect Compatibility]: The Click In Style battery is ONLY compatible with Dyson the latest (Spring 2020) V11 SV15 SV16 SV22 970425-01 970938-01 NOTE: V11 has two models one is the Button installation model another is the screw in installation model. This is the button installation model not compatible with the screw installation model. Please compare to the picture herein and verify prior to purchase. [Ultra high capacity]: Improved 5.0Ah battery higher capacity than other 4.0Ah batteries super suction power longer dusting time. [Safe and Stable]: Overload protection over current protection short circuit protection high temperature protection to make sure you can use the vacuum cleaner safely. [What You Get Customer Service]: DTK V11 Replacement Battery Battery Cover Manual. 30-day money back and 12-month limited warranty. CONTACT US: Please contact through "Your Orders" tab in Amazon account (allow 24hrs for reply) we will give you the most satisfactory solution. With DTK batteries you can clean household hygiene better.]