[Work Great as V7]:21.6V | 2.5Ah | Lithium-ion battery. Compatible with all V7 series vacuum cleaners. 30-45mins (normal mode) & 7-10mins(max mode) . [Compatible with All V7 Machine]: V7 , V7 , V7 +, V7 Trigger, V7 Trigger, V7 HEPA, V7 Car+boat, V7 Absolute...(Only for V7, NOT for V6 SV07). [Upgraded 2.5Ah, Longer Run Time]: Made of lead-free process prevents overcharging & lengthens battery life. Fully charge with V7 charger or charger station about 3hrs. [Easy to Install & Safe Charge]: Took about 2 minute to replace. Built-in multiple protection can lengthen battery life, protect the vacuum and your safe. Colour:Gray Material:plastic Package Contents: 1 x Battery Adapter 1 x Dust Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.