21.6V V8 4.0Ah Battery Replace for V8 Li-ion Battery, 4000mAh Lithium ion Battery Compatible with SV10 V8 Animal, Absolute, Motorhead, Carbon Fiber, Fluffy Series Cordless Vacuum

Great replacement battery but my only complaint is it doesn't hold a charge for an extremely long amount of time. On high you get maybe 20 minutes.

Worked great for a little while then stopped working after 5 months. The seller said it was still under warranty and that I would get a replacement through Amazon. That wan't true. Luckily Amazon worked with me and gave me a refund. I would not recommend buying this battery.

6 months later, performing just fine.

Exactly as described. This is a quality battery.

I purchased this battery 10 months ago. Initially it was fine but after a couple of months the runtime became shorter and shorter and now it only runs for a few seconds before the battery is dead. I’m buying a new battery today, but it won’t be another one of these.

This battery works better than the battery that came with the Dyson. The charge last twice as long

Ahhh, my Dyson is working again. Hopefully, this battery will last 2-3 years.It's easy to install and cleans the whole house.

This battery was worth every penny. It is so much better than the battery that comes with it our Dyson. Now we don’t run out of charge. Our house is small so there was no reason for that. Now we are happy with our Dyson finally. But if you want a light, go order those little green lights that stick on to the side of your vacuum head. They’re rechargeable . They are pretty cheap and you can see all you’re vacuuming up. Now you don’t need to buy the most expensive model of Dyson. You’ve just upgraded it twice for very little. You’re welcome 😇