Replacement Battery for RoboVac X8 Series Robot Vacuum fits Part Number PA61 Lithium Ion Sweeping Robot Battery

Simple to install and fits battery compartment as well as original equipment. Not sure about this, but it seems to take a bit longer to recharge compared to original battery. Run-time seems about the same.

Works well with Eufy X8

Based on the battery specs it should be a perfect replacement battery for the eufy X8. However, even if the specs are the same this battery holds less of a charge then the one that ships with the X8. I have done several tests and while using the OEM battery for the X8 I got about 60min of run time. With the same settings, I can only get 41mins of run time out of this battery after being fully charged. It also seems that the robo vac will not go back out to finish the job after charging. If you need a battery to replace a dead on this can work. just know you are not going to get anywhere near the run time you did before.

One star for fitting and one star functioning but that's it. For its supposedly larger capacity than the original, this battery drains incredibly fast. I'm keeping it because the area it needs to clean can still be completed on a single charge (barely) and I don't mind if it cleans, recharges and finishes, but it is nowhere near the capacity of the original battery which would drain to about half capacity on the same settings. So IMHO it's not worth the $10 savings from other battery choices on Amazon. Definitely will not buy again.

Works like a charm. It was a simple case of put the battery in, and go

The replacement battery was hard to find on the Eufy website, of course Amazon came through. So far it is working fine.

Fast delivery, no longer charging, just about 4 months - every other day use.

Our Eufy robovac would just stop after about 50 minutes of running. No warnings or lights just dead stop. Put this new battery in and the robovac runs like new.

Fit perfectly. More powerful than the original.