Fancy Buying 14.4V 4000mAh Replacement Battery for Shark RV750, RV720, RV700, Ecovacs Deebot N79 N79S DN622 & Eufy RoboVac 11, 11S, 11S MAX, 12, 15C, 15C MAX, 15T, 30, 30C, 30 MAX, 25C, 35C

The Fancy Buying 14.4V 4000mAh Replacement Battery Pack has breathed new life into my trusty vacuum robot. Here's why I'm thoroughly impressed:1. Extended Cleaning Power:This high-capacity battery pack delivers exceptional power and endurance. With a 4000mAh capacity, my vacuum robot can now tackle larger areas and complete multiple cleaning cycles without needing a recharge.2. Seamless Compatibility:It's a perfect fit for my vacuum robot, and installation was a breeze. The battery pack seamlessly integrates, ensuring that my robot operates at its full potential.3. Reliable Performance:I've noticed a significant improvement in the cleaning efficiency and runtime of my vacuum robot. It maintains consistent suction power throughout the entire cleaning cycle, leaving my floors spotless.4. Long-lasting Durability:The build quality of this battery pack is impressive. It feels robust and well-constructed, indicating that it's designed to withstand the demands of regular use without showing signs of wear.5. Quick and Convenient Charging:Charging times are reasonable, ensuring that the vacuum robot is ready for action when I need it. The convenience of a reliable, fast charge cannot be overstated, especially for busy households.6. Budget-Friendly Solution:This replacement battery offers exceptional value for its performance. It's a cost-effective alternative to purchasing an entirely new vacuum robot, allowing me to enjoy enhanced functionality without breaking the bank.7. Seamless Integration with Robot's Functions:All the original functions of my vacuum robot, such as scheduled cleaning and navigation, work seamlessly with this replacement battery. There are no compatibility issues or disruptions in operation.8. A Greener Choice:Opting for a replacement battery is an eco-conscious decision. It extends the lifespan of my vacuum robot, reducing electronic waste and contributing to a more sustainable approach to household cleaning.

This is the first time replacing our Eufy 25C battery with this brand. It is superior performance compared to the others we have purchased. "Goofy" now runs for an hour+ with no problems compared to 25 minutes. Just order it. You will be happy. Made our lives so much cleaner, simpler and easier. Thank you.

After couple years of our robo vac the battery life had clearly expired and decided to buy a new rechargeable battery to replace. So easy. YouTube videos showed me how to do it. Took 3 mins tops. Thanks!!

Perfect fit. cleared error light on cleaner and fully charged. Vacuum ran great after this battery installed.

We got this battery as a replacement for the original battery. This new battery worked well for probably a month and then gave up. It barely holds the charge for a few minutes and stops working. Will not recommend this battery to anyone.

I've had a couple of these Eufy third-party replacement batteries. They're fine, but peter out after about 4 months or maybe 5 or 6 if you're lucky. This one is working great so far, but I doubt it'll make 6 months. If it does, I'll update this review.In the meantime, I'd buy based on price. This one was the cheapest when I bought it, so that's what I got. Seems to be exactly like the others, so I'm satisfied.

Less waste! 1) Saved me money. 2) Don't have trash pick up like a few select towns/cities in my state so reducing waste I have to haul myself is a bonus!!

It worked good for 7 months but now it only does about 1/2 the job it use to before needing a recharge. When battery goes low vac does not make it back to charger by itself. Contacted Amazon, first CS rep said would print out return mailing label and would be refunded purchase price minus $3.36 restocking fee. When inquired why restocking fee on defective item, said that was required by seller. Eventually referred to supervisor and concern resolved.