Fancy Buying 14.4V 4000mAh Replacement Battery Compatible with Ecovacs Deebot N79S, 500, N79, DN622 and Eufy RoboVac 11S, 11S MAX, 15C MAX, RoboVac 30, 30C Robot Vacuum Cleaners

This keeps my knockoff roomba running.

This battery is very easy to install. As in, I could ask a 7 year old to do it. Anyway, it charged easily and now the robot vacuum works like new. I would say that the claimed run time of about 2 hours is fairly accurate, so that should be enough time to get any designated area clean.

Prompt delivery and works well. Happy

Correction. The issue was my vacuum not the battery. Ultimately the company responded by sending a replacement. Once I fixed the vacuum problem, the battery works well. Old mistaken review follows:Just stopped charging at the 2 1/2 month mark. Wrote company for replacement, but did not receive a response. Gave it a good review at 2 weeks but now cannot recommend.

My poor vacuum had stopped working, I tried to feed it, but no luck... I thought I was going to have to part with it. I started to make arrangements with the veterinarian for end of life. I was so distraught that I was pretty sure I would never get another one, just to raise and cuddle it, but eventually have to let it go too. Then it occurred to me that maybe, just maybe, it just needed a transplant since it was not able to be charged. I got this battery and the surgery went very well (first time I had operated on a vacuum of this type).Recovery was very quick, about 2 hours to charge, and.... without any rehabilitation, it just started up and started cleaning the floor. I really think it should have taken a few weeks off, but when I turned it on, it insisted on cleaning...

I haven’t used my Eufy 30 for a while, so I got it out to charge. It would not charge, and I tried to reset it several times according to their app. I googled the issue and saw I needed a replacement battery. I ordered this one from Amazon, installed it easily and now it works perfectly!!!

ok

Battery performed well in the beginning but died after 6 months with just 3 uses... Previous original manufacturer supplied battery lasted 2 years.