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🔋 Power your clean with unstoppable energy!
This upgraded 4000mAh 14.4V lithium-ion battery replacement is designed for Eufy RoboVac and Ecovacs Deebot N79 series robot vacuums, offering ultra-long runtime of up to 180 minutes and over 1000 recharge cycles. Featuring advanced safety protections and broad compatibility, it ensures reliable, long-lasting performance backed by a 1-year warranty and customer-first support.


| ASIN | B0DL18B5QW |
| Antenna Location | Battery for some deebot and eufy Robot Vacuum series |
| Battery Capacity | 4000 milliamp_hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 165 g |
| Best Sellers Rank | #30,775 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #6 in Vacuum Replacement Batteries |
| Brand | Batryuic |
| Customer Reviews | 4.6 out of 5 stars 725 Reviews |
| Included Components | 14.4V 4S1P 4000mAh Battery |
| Item Weight | 160 g |
| Manufacturer | Batryuic |
| Model Name | eufy 11s battery |
| Model Number | Eufy Battery Replacement |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Battery for some deebot and eufy Robot Vacuum series |
| Reusability | Rechargeable |
| Unit Count | 1 Count |
| Voltage | 14.4 volts |
| Warranty Description | We provide you free replacement battery if battery cannot be charged within 1 year |
R**S
Perfect fit
Went in easy and now my vacuum is staying charged.
J**S
Oe quality
Perfect fit drop right in
B**N
Cable too long for Eufy 30C
Nice battery. Easy to install. The cable is a little long for the Eufy 30C Robovac. Took a little finessing to get it in. But once I figure out a good location, the battery went in easily. Just don't use anything sharp to push the cable down between the battery and the battery compartment.
R**L
New life for my RoboVac
This upgraded (4000mAh) battery installed easily and gave new life to my Eufy RoboVac 11S. For a longer life, be sure to follow the instructions to fully charge the battery, then run the RoboVac steadily to fully run the battery down (it will return to the charging station by itself at this point) then fully recharge the battery again before further use.
A**E
Super impressed
Was so easy to install and worked very well. Took awhile to charge, but that’s normal. The price was very good.
A**R
Great Replacement Battery — Vacuum Runs Like New
I bought this upgraded 4000mAh battery for my Eufy 25C, and it’s been working perfectly. After a few weeks of use, the vacuum runs like it’s brand new again. I’m really glad I took the time to research the issue instead of tossing the whole unit — turns out a simple battery replacement was all it needed. Great value and an easy fix.
M**O
Didn't quite last a year.
Replacement battery worked well, until it didn't. Lasted just less than a year, so I had to get a replacement. 1-year warranty was honored.
M**O
Works
Got my Eufy 11S Max running again with minimal fuss! I was afraid I'd have to replace the whole robovac, but this little replacement battery saved the day.
Trustpilot
5 days ago
1 month ago