Robotic Vacuum Battery Replacement for Xiaomi Mijia Roborock S5 S6 S7 S50 S51 S55 Xiaowa E20 E25 E35 Series

3 year old e25. Got 40-50min on a charge on max suck. Started dying randomly while running, cells out of balance.Installation was simple just a screwdriver and your fingers. This battery has more than tripled the runtime. Will updated IF it gives up the ghost prematurely

I purchased this replacement battery for my Roborock E25. After 3 years of use with the OEM battery, the robot would randomly die around 30% battery life. I reached out to Roborock support and they directed my to an AliExpress website, where the battery was almost $60 and could take up to 2 months for delivery. I ended up purchasing this battery instead.The installation took less than 5 min. The new battery has 5600mAh vs OEM 2800mAh, so the robot runs a lot longer. I see that there are some mixed reviews about this battery dying after a few months, so we'll see.Here is the cleaning history for my original 2600 mAh battery:Total time used: 493 hoursTotal area: 26 km.sq.Total cleanups: 735I hope this new one lasts just as long, if not longer.

While this battery clearly extended the run time over the used original battery, it did not last very long. It lasted less than 1 year.I contacted the seller and instead of a replacement, they offered a discount on the purchase of a replacement battery. I will look for a different option.

The battery is packed with eight 18650 batteries, which is the same as the Proscenic M7 Pro battery. I have to cut the socket and solder the original Proscenic connector, but that was it. There are four connectors in Mijia battery, but only three was used in Proscenic. The one that is not used is probably temperature sensor, the three that are used is probably 0V, 14.8V, and control signal.---------------------Update 2023 Aug 15. -------------------------The battery died. It last 14 months. Not so good, it should be able to last 2-3 years.

Bought this for a 5 year old Roborock Bot. Upon opening it, the female battery connection to the Bot didn't have as many prong openings, so I was skeptical it would work. But fitted in and this old Bot has new life. Good price, good product.

Aún no lo he podido usar, mi batería anterior aún funciona.

I put this battery in an old Roborock E25 and it literally brought the vacuum back to life. I might get 40 min of clean time before replacing the battery, and now I'm getting about 160. Before it would take all day long to clean my 2,100sq ft house, and most of the time it would completely miss rooms. Now it cleans it all in one charge with battery to spare. I was considering buying a brand new robot vacuum but got this battery instead, and I'm glad I did!

This fit my robotic just fine.Failed after two years.