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Nguyen
Reviewed in the United States on March 18, 2025
The 4200mAh capacity provides a noticeable improvement over the stock battery, giving my Robovac 12 extended runtime. I’ve seen an increase of about 30-40 minutes compared to the original battery, which helps it cover more area before needing a recharge. The suction power remains consistent throughout the cleaning cycle, and it doesn’t struggle to return to the dock like some weaker aftermarket batteries.Installation was quick and easy. It fits perfectly in the battery compartment, and the connectors align just like the original. If you’ve replaced a battery before, it’s a straightforward process.It charges just like the original battery, and I haven’t noticed any overheating or issues during charging. After a few weeks of use, it holds a charge well, and there’s no sign of performance degradation. Longevity is something I’ll have to assess over time, but so far, it’s promising.For the price, this is a great replacement or even an upgrade over the stock battery. It breathes new life into an older Robovac 12, making it feel like new again.• Higher capacity than the original (longer runtime)• Easy to install, perfect fit for Robovac 12• Good performance with no overheating• Affordable alternative to the official battery• Longevity remains to be seen (will update after long-term use)
Brandon ward
Reviewed in the United States on February 26, 2025
I bought this battery because it claimed to have a capacity of 4200mAh, which was the highest among similar products. I was really excited about it. After receiving it, I quickly installed it in my 11S and started using it, but I didn't notice any significant increase in the robot vacuum's runtime compared to my old battery, which only has a capacity of 2000mAh. I took the battery to my engineer friend who has the tools to test battery capacity, and he told me that this battery is actually 2000mAh, definitely not 4200mAh. It's clear that the product's advertising is just straight-up fraud.
Luis Rodriguez
Reviewed in the United States on February 21, 2025
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John O.
Reviewed in the United States on February 17, 2025
This EGR 4200mAh battery replacement works perfectly with my Eufy RoboVac 11S. It holds a charge well, providing longer cleaning sessions without interruption. Installation was simple and quick. The only drawback is that it takes a bit longer to fully charge. Overall, a reliable and affordable replacement!
Gatorpossumstudios
Reviewed in the United States on April 4, 2025
My little robovac was worn out and could only clean one room at a time, but now scruffy can finally clean the whole house again! Plus having extra brushes is a nice touch
Robear
Reviewed in the United States on April 3, 2025
I’m so glad I decided to replace the battery in my eufy Robovac 25C with this 4200mAh battery! My Robovac’s cleaning time had drastically reduced, but after installing this replacement, the cleaning time has been greatly extended—now it easily covers almost the entire house on a single charge.Installation was a breeze. I just followed the simple instructions, and within a few minutes, the battery was in place and ready to go. The compatibility is spot on; it fits perfectly with my model and charges quickly.Not only is the performance impressive, but the price is much more affordable than the original battery, making this a great value. If you’re looking for a reliable replacement for your eufy Robovac, I highly recommend this one. It’s a great way to extend the life of your vacuum without breaking the bank!
John
Reviewed in the United States on April 24, 2025
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Emma Logan
Reviewed in the United States on April 16, 2025
Works well and good brushes came with the kit.
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