Vacuum Robot Replacement Battery for Xiaomi Mi Vacuum Robotics Roborock S50 S51 S52 S55 T60 T65 E20 E25 E35,14.4V Li-ion

Battery was easy to install and brought our robot vacuum back to single charge vacuum cycle.

We had been having a problem for some time with our Xioami vacuum. It kept giving an error message that the main brush may be blocked. I had looked at many user forums, but got no real solution. But when the vacuum started needing to charge twice before completing the job, I replaced the battery. Now the error message occurs pretty much only when it needs to, that is, when the brush is actually blocked. I don't know how long the batter will last, so I'm a little hesitant about giving it 5 stars. I purchased another batter for an alarm system that lasted only a year, so I'll update this review if this battery doesn't last.

Purchased this replacement battery for our Roborock S5. It worked well initially, then a few months ago we noticed the Roborock was stopping much sooner than before and would head back to the charger before finishing. By the time the battery was about eight months old, the Roborock could only run about 10 or 15 minutes before stopping - without going back to the charger. One month later and the Roborock is essentially unusable. Would not recommend.

Replaced original Roborock Xiaomi battery with low expectations. Old battery always needed at least one recharge while cleaning, lately two, and finally would just stop midway. With this battery, cleaned it easily in one pass, without mid-job charge. Plus, much faster and a more effective job cleaning. I'm very pleased, hope it holds up well. Changing battery was easier than I anticipated. Very surprised at how much faster the vacuum did the job, and better.

Our 2019 roborock (Xiaomi) suddenly started discharging after 10 mins of working. This battery brought it back to live. I’m impressed as it really did exceed my expectations.Xiaomi-bot has been fine since that. Will see how long it’ll last on this battery

If your battery has reached end of life but your robot is in otherwise great condition, this replacement batter is WELL WORTH the $ - go for this. This basically makes the vac like right out of the box. I’d have paid even a little more this battery is so amazing. Crazy happy!

Life of the battery seems to be as good as the original.

with the OEM battery, my s5 roborock would easily clean the kitchen 3 times. in the beginning of this replacement battery, it did do that. but after a year, it stops after almost one round of the kitchen. would not recommend.