



🔋 Power your peace of mind with effortless, long-lasting energy!
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 & C31. Featuring USB-C fast charging and a quick-release clasp, it ensures easy installation and removal without tools. Lightweight and officially compatible, this battery pack guarantees reliable, uninterrupted home security with minimal hassle.














| ASIN | B0CJC3ZKBQ |
| Batteries | 1 C batteries required. (included) |
| Batteries Required? | No |
| Batteries included? | Yes |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | 824 in DIY & Tools ( See Top 100 in DIY & Tools ) 34 in Home Security Systems |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,263) |
| Date First Available | 26 Sept. 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Package Quantity | 1 |
| Item Weight | 150 g |
| Item model number | T8743 |
| Package Dimensions | 11.6 x 10.1 x 3.3 cm; 150 g |
| Part Number | T8743111,B0CJC3ZKBQ |
I**.
Reliable and easy to use
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.
M**E
Very good product
It works very well, good battery life!
B**D
Much needed Back up battery
Solid piece of kit well made does the job backing up the original battery.0
D**B
Decent spare battery, but drains quicker than expected
I am used to Ring doorbells and their batteries generally last a fair amount of time between charges. After switching to Eufy, I noticed the included battery drained much faster than I expected. I bought this spare so I could swap them over and avoid any downtime. It does exactly what it needs to do, it charges normally and keeps the doorbell running, although the battery life still feels noticeably shorter than what I was used to with Ring. Swapping batteries has become a fairly regular task, which can get a bit inconvenient if you rely heavily on your doorbell for security notifications. The build quality seems good and the price is reasonable, so it still offers good value overall. Anyone coming from a different brand with longer lasting batteries should just be prepared for more frequent charging. Ultimately, it gets the job done and provides a practical backup for when the main battery runs low. In the future I hope to hard wire my doorbell to avoid constant swapping, but as a spare battery, this is a solid option.
M**Y
Good quality
Dose exactly what its supposed to do, it's good to be able to swap out the batteries. They do last a good while, roughly about four weeks
A**A
Eufy E340 doorbell battery
Great battery works well last me roughly 3wks to 4ish on my Eufy doorbell don’t personally believe these batteries are meant to last any longer due to the fact how many times your doorbell could be recording plus factors of cold weather
J**.
Great doorbell camera..
Excellent buy, bought for a Christmas present, they can’t fault it, works well nice and clear, good range nice and clear ..good price, easy to install highly recommend..
S**3
Good so far
Early days but seems to work fine, easy to set up and use, only complaint is can't check battery levels in the app, and when it runs out only way you know is the postman knocking on the door, still miles better than r1ng
A**Z
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.
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.
V**R
Expensive but since we couldn’t wire the doorbell, we needed an extra battery as charge time for battery can be long. The battery doesn’t seem to last more than 2-3 months in use and long charge time means period of “blindness” when doorbell can’t work at full capacity .
Trustpilot
1 month ago
2 weeks ago