Upgraded 4000mAh N79 14.4V Battery for Eufy RoboVac 11 11S 30 15C 25C 35C Robot Vacuum Cleaner for Ecovacs Deebot N79 N79S Deebot 500 600 DN622, Goovi F007C D380 Robot Vacuum Cleaner Battery

Perfect fit and upgrade to our dead OEM battery. Almost doubled the running time from the stock battery. Feels like the vac has more power to it as well.

My robot vacuum disappeared under a bed, in the corner or a room. I could not reach it, so I left it there for a year. When I finally retrieved it, the battery was so dead, it would not charge. I was going to throw out the entire vacuum, but then I realized I could just replace the battery! This battery was easy to install, and charges perfectly! Great value!

So far so good. Battery came charged. Easy to replace. Two screws on bottom of unit, snap old battery out and new one in.

My robot vacuum came back to life after using this battery replacement! It’s like it’s new again.

I received the vacuum this battery goes to from someone that never opened the box. I tried charging the battery and it would not charge. I ordered this replacement battery and swapped the out. I would have chose 5 stars if the battery came charged. It took about 5 hours to charge the battery, but it works great.

Received quickly. Battery was charged upon receipt. Seems to work for a long time on a full charge.

I have to replace Effie’s battery every two years, and this battery is up to the task.

Easy to install and came charged