CITYORK 14.4V 5600mAh Replacement Battery for Roborock Qrevo S/Qrevo Pro/Plus/Qrevo 35S/ 35A/ S5V, for Roborock Q7 L5/L5+, Q7 M5/M5+, Q5 Q7 Q8 Plus/Pro/Max/Max+ Robot Vacuum

I noticed my roborock s7 stopped emptying and would drop to 0 battery very fast. I decided to take a chance on changing out the battery. It is working perfectly!

Update:Vacuum is now unable to clean the house without the battery completely cutting out. I'd love to make this work, but it just won't. There's a problem with the battery that made it overheat or cutout. I will be trying out a different brand. The maximum vacuuming time I got was 81 minutes (1hr and 21 minutes) which is almost 1 hrs and 30 mins shorter than advertised. I seriously doubt the capacity is 5600mah as the originals had 5200mah and we were getting 2hrs til very recently when it finally failed after 3 years of service.Update:My robot is turning off intermittently. It's prompting a battery error message, saying it's running hot. I've never seen this warning ever before. And I've owned my mi robot since 2017. I will be returning the battery if the symptoms persists. Might be a QC issue?----Our Mi RoboVac finally needed a new battery after roboslaving for 2+ years! Not oem, but works otherwise!

I wasn't sure if this would work but everything measured out and the plug looked the same. so I thought why not and at least try it since Roborock won't make a new battery for the E25 anymore. Got this puppy in the mail today and popped it in the Roborock E25 and sure enough, it does fit and it is an improved battery since it packed more power to run longer (no the motor does not spin faster or anything just runs longer). If you have the E25 I can safely say that this battery will fit and work. I just now started the vacuum it is running fine. Time will tell if any issues arise, but in the meantime, I am happy with this purchase.

I bought this battery as a replacement for the OEM battery in my Roborock S4 Max. After about 2 years, the Roborock battery had degraded to the point where it could not complete a whole cleaning cycle without needing a recharge part way through. So I bought this battery as a replacement. I had high hopes since this one is advertised as having even higher capacity to begin with (400 mAh more, I believe). I was excited when the straight forward replacement resulted in a renewed ability to complete a cleaning cycle while still having about 20% or so left in reserve. Well, I'm not even 3 months into ownership and this one now needs to recharge before completing a cleaning cycle.

Fit great and is holding up its charge well.

Rejuvenated the battery life of my RoboRock S4 Max. The OEM battery lasted about 3 years before it had to charge twice before completing its run. This battery put it back to completing the whole run without having to return to the charger base. Didn't quite fit in the same space as the OEM battery. It rested in the cavity but was a little loose. Not a problem, though. Time will tell how long it will last but happy so far.

Worked great for about a year but over the past few weeks I have been finding out S6 dead after getting through about 70% of the normal cleaning routine and unable to return to the dock. Just flat out dies and when I put it on the charging base shows less than 10% battery life remaining.On the plus side, the S6 really is easy to work on, just wish I wasn't replacing the battery again.

I have an older Roborock (the original S4, named, of course, Rosie!) that I've had for years now, but the battery was starting to run down and have to stop/recharge during her run (usually takes about 90 minutes to complete). Eventually, she couldn't even make it with one recharge (only ran about 40 minutes), and at that point I decided to get her a new battery! I saw that this battery had even MORE mAh than the original, so I thought I would give it a try. It was very easy to install, and fit perfectly. Easy peasy!Wow! She's zooming around again like a new robot! Now, she does the full 90 minute cycle and still has at least 45% left! This battery will last us for a LONG time! Needless to say, I'm very pleased!