

🔋 Stay charged, stay secure—never miss a moment!
The eufy Rechargeable Battery delivers a robust 10,000 mAh capacity tailored for eufyCam S4 and multiple smart lock models. Rechargeable and hot-swappable, it ensures up to 6 months of reliable power, minimizing downtime and maximizing convenience for your smart home security.
| ASIN | B0B9ZLMCXB |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #186 in Home Security Systems |
| Customer Reviews | 4.5 4.5 out of 5 stars (451) |
| Date First Available | August 18, 2022 |
| Item Weight | 6.7 ounces |
| Item model number | T85Z0 |
| Manufacturer | Eufy |
| Package Dimensions | 4.49 x 3.15 x 1.02 inches |
P**L
Spare
This is perfect as a spare to replace battery quickly. It takes about 6 hours to fully charge but last anywhere from 3 to 6 months.
J**T
It Pays to have a spare Battery
Battery Back up for Eufy door lock. It is worth having a spare when the other is on the charger.
R**M
Battery lasts a long time
Took six hours to charge but lasts weeks when installed. Changing batteries is my simpler that charging the battery in the lock assembly.
R**M
Perfect backup
Bought a second battery to always have one charged and ready to swap.
Z**L
Can be used with Video Smart Lock S330 AND Video Smart Lock E330
The reason I have taken a star off of my rating is because eufy STILL fails to provide the information regarding what all this rechargeable battery is compatible with! Well, that was the case at the time of this review. For anyone who has the Video Smart Lock E330 though (Model # T8531), I can assure you that this rechargeable battery is compatible with it. Everything on the back of the battery that comes with that is identical to everything that's on the back of this battery. Except for where it says the date in the bottom right hand corner of the information sticker. But that's it. I also know that many people who got that E330 Video Smart Lock were a bit perturbed that there was no charging cable included to charge the battery with. And well, this rechargeable battery doesn't come with a charging cable either, lol. Hey, in my opinion that's a good thing. But if they are going to do that then they need to make sure they are clear about that. Anyway, no matter which of the video smart locks you have, this rechargeable battery is pretty much a must have. Especially considering that it takes 6-8 hours to fully charge. And just one more thing. I've noticed a lot of generic versions of these rechargeable batteries are for sale out on Amazon. But I wouldn't recommend using any of them. It's just always been a personal rule of mine to always use name brand when possible.
R**D
Worth the money
Easy to charge
G**M
Works great
Battery life of the battery I got was easily a month or two which is more than enough for me. Takes seconds to install and swap out. Charges via USB C which is great. Functions perfectly. Did not know if I wanted to trust 3rd party brands so bought a OEM one and do not mind the few extra bucks spent.
C**R
As an extra battery, it may be unnecessary
The battery life is supposed to be 9 months and it takes about 8 hours to recharge. So, it sits and waits for the other batter to fail or show a low charge. The alternative would be to remove the battery and charge it on a day when you're not needing to use your lock. I won't know about battery life until 8 or 9 months from now. I may change it out earlier as we do some extensive traveling and it will be nice to know I don't have come home to a dead battery and then find my key.
C**N
Identique à celle que j'utilise, est écrit en description ''pour S330...'', mais fonctionne aussi avec modèle E330 3-in-1 Video Smart Lock (c'est la même batterie). La charge dure longtemps. Très satisfaite.
R**R
Very good battery replacement for the eufy Security Video Smart Lock S330,Doorbell Camera with Chime.
P**E
No issues, all good on my side
J**E
God battery but expensive compared to competitors
K**S
Original back up battery for eufy! A+
Trustpilot
1 week ago
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