Dyson V8 Absolute Cordless Vacuum Battery Failed

My Dyson cordless vacuum's battery died after 3.5 years. They want 2000₺ for a new battery, which is a lot considering the device itself costs around 7000₺. If you're thinking about buying something, you might want to think twice before making that decision. We're not happy that the battery on this cordless vacuum dies so fast.

We bought the Dyson V8 Absolute cordless vacuum on December 30, 2019. Even though we had a regular vacuum cleaner, we decided to start using a Dyson to clean the house and furniture every week or two. We got a robot vacuum in the summer of 2021 to handle all the pet hair. We started using Dyson to clean our furniture.

During the summer of 2022, we noticed that the Dyson V8's battery didn't last as long when we were using it. The amount of time the maximum power can run for has gone down from 7 minutes to just 30 seconds. It's actually pretty cool that if we fully drain the device's battery, we can still use it for another 30 seconds by quickly plugging it into the charger for just 1 second. We did this cycle multiple times. So basically, once we're done using it, we can charge the battery for 1 second and then use it again for 30 seconds.

We reached out to tech support about a month ago. They suggested trying an experiment where you charge the device in a socket in a different room. We fully drained the battery and repeated the same cycle of using it for 30 seconds multiple times. So, after we plugged in the device, we saw a red light, and it stopped charging.

We sent the device to the technical service, and after a week, they told us that the battery had stopped working. They said we need to pay 2000₺ to get it replaced. They also said that using it too much could be why the battery died.

I can't believe that the device only works for 30 seconds after it's been discharged and then charged again. It must be because of a battery problem. Even if we assume that the battery failed, it still doesn't explain why it's acting so weird. I think a more reasonable explanation might be that there was a problem with the battery during manufacturing. However, we can't prove it, so we have no choice but to trust what the service tells us.

We have lots of batteries that we charge halfway every day, like the ones in our phones or rechargeable batteries. I haven't seen a battery get so worn out in 3.5 years that it needs to be replaced entirely. I didn't think a cordless vacuum would cause this kind of situation. That's a bummer.