



🔋 Stay charged, stay secure — never miss a moment!
The eufy Security Rechargeable Battery Pack offers a robust 6,500 mAh lithium-ion capacity, delivering up to 6 months of backup power for your eufy Video Doorbell E340. Featuring a quick-release design for fast swaps and USB-C charging for universal convenience, this official accessory ensures your smart doorbell stays powered without interruption, enhancing your home security with ease and reliability.









































| ASIN | B0CJC3ZKBQ |
| Batteries | 1 C batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #774 in Home Security Systems |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,316) |
| Date First Available | August 15, 2023 |
| Item Package Quantity | 1 |
| Item Weight | 5.3 ounces |
| Item model number | T8743 |
| Manufacturer | Anker |
| Package Dimensions | 4.57 x 3.98 x 1.3 inches |
| Part Number | T8743111,B0CJC3ZKBQ |
A**Z
Excellent Battery Life
Purchased as a secondary battery so that I can always have one charged up and ready to go when the other has run out of charge. I usually average around one month of use per charge, but it varies depending on how much activity occurs to trigger the camera or it’s light.
J**J
Great 2nd battery
Works great. Nice to have a 2nd battery so there's no downtime.
S**N
Eufy E340 battery
I got this for my eufy 340 doorbell. I don't know if the same battery is used for other products they sell. The battery has a usb c port built into it with a cover. To charge just plug it into the included cable and the usb A end of the cable into a relatively recent 5v 3A usb phone charger (or any of the hundreds of chargers that amazon sells that can output in that range). There is a tiny led on the front, red for charging and green when complete. It took like two and a half hours to charge the battery and I don't know how much charge was on it when it was received. The battery must be installed regardless of whether your doorbell is wired into your house wiring, at least currently this is so. Glad I got the second battery, turns out I am getting a couple weeks off a battery while using the balanced setting in the doorbell settings. If I turned off motion detection completely I'd get more life but I like using it for the package detection and notification so in case there's any question about a delivery I've got the video of the delivery person.
M**R
Works well, lasts longer than expected
I got this battery to alternate between the original battery of the bell and another one to keep it on all the time. This was surprisingly great choice because the battery lasts between 3 to almost 4 weeks on a single charge every time. Eufy advertise it that it need to be charged once a week, but it does last longer than that. I'm really happy with how consistent, how good it work. This battery is a no-brainer for any owner or Eufy wireless bell.
D**E
Works well but pricey
Item works well just pricey compared to generic
R**N
A great video doorbell
I really like that you don't need a subscription and all the videos you want are saved locally. It was easy to install and the image quality is excellent. The added feature of a second camera that looks down is great for checking for packages. It connected smoothly to my Echo Show so I can see who is at the door even if my phone is not handy. It is a great value and well made, as all the products I have used from Anker. I am running with a battery since the wiring for my old doorbell went bad. So far, battery life is ok, and it is easy to recharge. I would recommend a spare battery to minimize down time.
W**L
Extra battery means no downtime
Extra batteries are a must. Got the extra battery to switch out when the one in the doorbell needs charging. Eliminates the need for a downtime. Would be even better if the battery capacity was slightly higher. I have to change the battery every week. However, that is probably due to the higher traffic on my street.
C**S
Need better batteries.
Won't stay charged.
I**.
Great battery pack — easy to install, charges well, and holds power reliably. It’s made a noticeable difference to performance and gives real peace of mind. Solid quality and well worth it.
G**R
Akku hält ca. 5 Wochen, wurde zum tauschen vom mitgelieferten Akku bestellt. Alles bestens
D**L
Perfecto como repuesto para mi eufy 340
P**A
Bra produkt
R**K
Past perfect en is erg gemakkelijk om te hebben. De nieuwe deurbelcamera verbruikt nogal wat meer dus nu kan ik ze gewoon snel wisselen. Ideaal dus.
Trustpilot
2 days ago
1 month ago