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Your cart is empty.4.4 out of 5 stars
- #1,237 in Home Security Systems
Product Description
Customer
Reviewed in the United States on July 4, 2025
This is a nice battery, a direct replacement that works great. I got this to have a spare so I can simply hot swap it immediately when needed instead of waiting for a dead one to recharge. I have the Eufy S220 smart lock and it fit and worked with no issues. It has a USB C port on the battery to charge it and even includes a short USB C cable. The battery came mostly charge and I was able to top it off with 15 minutes of charging. It fit in securely in my lock and no issues yet. I expect this to last just as long as the original battery, but will update if it doesn't.
Ruben
Reviewed in the United States on July 2, 2025
So this replacement battery is about half the price of the original and claims to be around the same 10000mah capacity. This fact turned out to be both true and false, the cells inside seem to be used LG F1L cells 3 of them to be percise that when new were rated for 3350mah each, but since this battery uses used cells that capacity has dropped over time to about 2938mah per cell adding up to a total capacity for 8816mah when you add together the 3 cells inside. To be honest this isn't that bad when you consider some of the egregious claims on other aftermarket batteries on Amazon and for a lock 88% isn't all that bad. My use for this battery pack was to have one fully charged at all times so when the one in the lock died I could just swap them out without having to wait the ridiculous amout of time the original and this one take the charge fully. Speaking of charging times it took me about 6 hours to charge this one from 0 to 100 which I was hoping for better, but it's at least on par with the original so I won't complain about it with this battery. It does reach about 15 watts, but it also drops about 3 watts randomly and continues to ping pong between those two wattages while charging. The actual installation itself was no problem I just popped my old one out and dropped this one in. It was a perfect fit and as an upgrade unlike the original which used a micro USB cable this uses a common type C cable so I don't need to have a specific cable just for charging the battery like the original. Overall for about half the price of the original although this does use used cells they are LG which means they're most likely going to be better than the cheap Chinese knockoffs that are floating around and although once again they're used there's enough capacity left where it shouldn't make too much of a difference on a low power draw device like a smart lock. I will continue using this in my lock and report any problems I may have with it in the future.
Symex
Reviewed in the United States on June 29, 2025
Once I discovered this battery was available on Amazon, I immediately ordered it, as having a spare battery for the electronic lock is incredibly convenient. I can now always have a charged replacement battery available for my compatible locks. It's convenient to have a charged battery ready to go rather than taking the battery out to charge for a few hours and leaving the door without power, since you cannot charge the battery while it is in the door.I am happy to see the battery has a USB-C charging port (with an included cable !!) whereas my original ones had micro USB ports. This ensures compatibility with modern charge cables, should I lose the one that cam included, or it stops working. Charging speed should also be faster.With a 10500mAh rechargeable lithium-ion battery on-board, This replacement battery life should be much improved over older variants. The battery out of the box was about ~40% charged, so it did not take the full charge time. I plan to use it right away (it's in use as I am writing this) and make it my main battery.The battery seems well-made. The connection points on the battery are designed just as OEM. the charge port is not loose and feel solid. I feel confident that the Type C charging port will last the life of the battery.A must-have accessory. This battery arrived well-packed, with a QC inspection sticker. The USB cable is a generic one, and the battery will work with any USB-C cable, as you see in the included photo. The price of this battery was also attractive whilst evaluating my reason for purchasing.
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