for Roborock S7 MaxV Ultra Battery for Xiaomi Roborock S4 S5 S6 S7 MaxV/MaxV Ultra/Pure, S50 S51 S55 Q5 Q5+ Q7 Brr-2p4s-5200s E4 E5 E20 E25 Max Pro Roboter Staubsauger 14.4V 6700mAh

It works! We thought we’d have to replace the whole vacuum, but this battery made it feel like a brand-new one.

I've had my roborock S7 for 2 years and the battery isn't lasting as long. My S7 will only clean on max for 31 minutes. I replaced the battery with this one and I just ran it for 80 Mins on max for the very first test. It's a great replacement. I don't think it's better than the original factory battery but now it's lasting as long as the s7 did when it was new.

While this product fit and worked for a while, after a month it quit taking a charge and no longer will power my vacuum. Buy at your own risk.

Extremely easy to install, about a 10 minute job including finding the Youtube videos with instructions. Works great. Appears to have improved the cleaning ability (duration) greater than the original battery. Very satisfied so far.

Worked like a charm. Good performance.

Its the perfect replacement and gets your roborock s4 and more going back to factory settings.Previously to this, I thought I had an electrical issue as my s4 would randomly die after a couple minutes of cleaning. Even when fully charged, the unit would die until back on the charger.So I figured it was worth getting a new battery and bam, this thing is back to new.Highly recommend.

I have an older model 4 and it was very easy to change out the battery. Just removed the screws on the bottom cover and unplugged the old battery. It took about 2 minutes - it also allowed for me to clean debris accumulated in the unit.Nice to be able to clean with just the initial charge again.

Picked this to replace the original battery because it was having to charge several times before completing a cycle. After having it for a few months, this one is lasting about as long as the old one. I will probably be doing better research before getting the next one.

This is a direct fit for the S7+ vacuum cleaner.My original battery was probably only 50% - 70% effective and the cleaning times were starting to become far shorter - so the vacuum was having to return to charging and then being dispatched again - falling behind more and more.So looked for a new battery, easy replacement - google is your friend - and found this particular battery.I noticed that the very first few schedules of cleaning - approx 30-40mins on medium suction and mop, the battery life showing wasn't all that great at first. However, it quickly improved over 2-3 uses and now stabilized to full charge and is same as new again. I'm happy!

It works great and my vacuum now cleans the entire floor on a single charge.