# eufy Security T8743 Rechargeable Battery Pack, 6,500 mAh, USB-C

The eufy Security T8743 Rechargeable Battery Pack is a 6,500 mAh replacement battery for the eufy Doorbell E340, with USB-C charging. The listing claims a charge can last about six months, but customer feedback reports varied battery life, so treat that duration as a claim rather than a guaranteed result.

- [Original product page](https://bargainclover.top/product/eufy-security-t8743-rechargeable-battery-pack)
- [View offer](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)
- Market: IE
- Language: en-IE
- Currency: EUR
- Brand: eufy Security
- Model: T8743
- Category: Electronics > Electronics Accessories > Batteries
- Price: 23.90 EUR
- Previous price: 34.90 EUR
- Discount: 32%
- Price checked: 2026-11-13T12:40:46.926Z
- Rating: 4.6 / 5
- Reviews: 1311

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listing claims one charge lasts about six months, with actual battery life varying in customer feedback.
- USB-C charging uses the same cable type the listing says can be used with other devices.
- A user-friendly latch is claimed to make battery changes quick and straightforward.

## Pros

- The stated 6,500 mAh capacity and rechargeable design provide a replacement battery option for a compatible Doorbell E340.
- USB-C charging and a claimed quick-release latch may simplify recharging and swapping.

## Specifications

### Identity
- Brand: eufy Security
### Power and battery
- Capacity: 6,500 mAh
- Battery type: Lithium Ion
- Charging connector: USB-C
### Compatibility
- Compatible device: eufy Doorbell E340
### Physical details
- Colour: Black

## Before you buy

- The listing claims about six months per charge, while customer feedback describes results ranging from months to 11 days and includes reports of degradation within 10 months. Treat runtime and durability as variable rather than assured.

## A good fit for

- eufy Doorbell E340 owners seeking a compatible replacement or spare battery.
- Buyers who prefer USB-C charging and want to keep a charged spare available.

## Less suited to

- Owners of doorbells other than the stated eufy Doorbell E340 compatibility, unless compatibility is confirmed separately.

## Customer feedback

Customer feedback highlights easy installation, charging and a good fit with the doorbell. Battery life and durability receive mixed reports, ranging from months of use to a reported 11 days and degradation within 10 months. For buyers relying on a spare for the listed E340, charging convenience is a reported plus, but runtime should not be assumed from the listing's six-month claim.
- Positive themes: Customers describe installation and charging as easy and report a good fit.
- Mixed feedback: Battery life reports vary substantially, from months to a reported 11 days.
- Mixed feedback: Some customer feedback reports degradation within 10 months.

## Frequently asked questions

### Which doorbell is this battery listed as compatible with?
The listing names the eufy Doorbell E340.
### How is the battery recharged?
The listing specifies USB-C charging.
### How long does one charge last?
The listing claims about six months, but customer feedback reports widely varying runtimes, including some reports of 11 days. Actual duration is not assured.

## Alternative options

- [eufy Security Video Doorbell Add-On Chime, Indoor Chime, Requires Video Doorbell E340/C31/C30, No-Delay Ring, Adjustable Volume, 8 Fun Ringtones, Not Compatible with HomeBase S280](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)
- [eufy Security Video Doorbell C31 with Add-on Chime, 2K FHD, 24/7 Recording \| Battery or Hardwire Powered, Easy to Install, Live Video Call, Human & Motion Detection, HomeBase S380 Compatible](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)
- [eufy Security SoloCam S220 Solar Security Camera Outdoor Wireless - 4GB \| Continuous Power, 2K Resolution Home Security Camera, 2.4 GHz Wi-Fi, No Monthly Fee, HomeBase 3 Compatible](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)
- [eufy Security Video Doorbell C31, 2K FHD, Battery or Hardwire Powered \| 24/7 Recording, Live Video Call, Easy to Install, Human and Motion Detection, HomeBase S380 Compatible, No Monthly Fee](https://bargainclover.top/visit/eufy-security-video-doorbell-c31)

## Add-ons

- [eufy Security Video Doorbell E340, Dual Cameras, 2K FHD, 8GB Local Storage \| No Subscription,Head-to-Toe View,Wireless or Wired,Color Night Vision,Two-way talk,AI motion/Package Detection, 2.4 GHz Wi-Fi](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)
- [eufy Video Doorbell Chime 2, 10 Built-In Chimes \| 2.4 GHz and 5 GHz Dual-Band Wi-Fi, Easy Setup, Bluetooth Auto-Pairing, Adjustable Volume Up to 80 dB](https://bargainclover.top/visit/eufy-security-t8743-rechargeable-battery-pack)

## Images

![eufy Security T8743 Rechargeable Battery Pack, 6,500 mAh, USB-C — 1](https://bargainclover.top/i/kDGspEI-9T7ElMal9TAzZ4u8GXq4BdHVuN2PZVtPXKbG1XQgO4S9v9gO0MHX9rVC6Pwf2KgpjZZOwzj4dR4IL4hpNmiBaPaSb97T6maQwt9H3bTqDvNA0M1b.jpg)

![eufy Security T8743 Rechargeable Battery Pack, 6,500 mAh, USB-C — 2](https://bargainclover.top/i/uckXWVaPWLSgiV9llE3RXre76WbcqjhVwMh5RhWlzW5yCMrViMuyWtO7x-VAWXiszaGVN3JM64KREbxi5El7x7JbG3veg2hoJZqECmyBcfUo3cm5enCEzPVF.jpg)

![eufy Security T8743 Rechargeable Battery Pack, 6,500 mAh, USB-C — 3](https://bargainclover.top/i/FeLxN2T-IEkVm8KiA755_RI7v91CKU-CQhpQdReM8orHfkmnkRgpJTPns1Q2nNcvwbqZDmIUBpfdcoJWOBzqRJx_igb8iUJWN7kmuQtAbEBdBHgcwVpweyMk.jpg)