---
product_id: 584365825
title: "eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31"
brand: "eufy security"
price: "$6"
currency: NZD
in_stock: false
reviews_count: 13
url: https://www.desertcart.nz/products/584365825-eufy-security-rechargeable-battery-pack-with-usb-c-quick-release
store_origin: NZ
region: New Zealand
---

# USB-C fast & universal charging Quick-release for zero downtime 6,500 mAh ultra-long backup eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31

**Brand:** eufy security
**Price:** $6
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Stay charged, stay secure — never miss a moment!

## Quick Answers

- **What is this?** eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31 by eufy security
- **How much does it cost?** $6 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/584365825-eufy-security-rechargeable-battery-pack-with-usb-c-quick-release)

## Best For

- eufy security enthusiasts

## Why This Product

- Trusted eufy security brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Effortlessly install or swap batteries with the intuitive quick-release clasp.
- • **Seamless Compatibility:** Officially designed for eufy Video Doorbell E340 for perfect performance.
- • **Universal USB-C Charging:** Charge with the same cable as your phone or laptop—no extra clutter.
- • **Power That Lasts Half a Year:** Enjoy up to 6 months of uninterrupted security with a single charge.
- • **Stay Always On, Never Offline:** Keep your home protected with a backup battery that eliminates downtime.

## Overview

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.

## Description

doorbell battery

Review: 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.
Review: Great 2nd battery - Works great. Nice to have a 2nd battery so there's no downtime.

## Features

- Long-Lasting Backup Power: 6,500 mAh capacity, up to 6 months of use from a single charge.
- Easy to Install and Remove: Intuitive clasp is designed to be simple and quick to use.
- Charge with USB-C: Power it up with the same cable you use for other devices.
- Official Accessory: Works with eufy Video Doorbell E340.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Images

![eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31 - Image 1](https://m.media-amazon.com/images/I/71ZTQ82VrUL.jpg)
![eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31 - Image 2](https://m.media-amazon.com/images/I/61M7tXlCSrL.jpg)
![eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31 - Image 3](https://m.media-amazon.com/images/I/6139Z+Ifz-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Battery Life
*by A***Z on February 7, 2026*

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.

### ⭐⭐⭐⭐⭐ Great 2nd battery
*by J***J on October 3, 2025*

Works great. Nice to have a 2nd battery so there's no downtime.

### ⭐⭐⭐⭐⭐ Eufy E340 battery
*by S***N on January 20, 2025*

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.

## Frequently Bought Together

- eufy Security Rechargeable Battery Pack with USB-C, Quick-Release Battery Pack, Long-Lasting Backup Power, 6,500 mAh Capacity, Easy to Install and Remove, Compatible with Video Doorbell E340/C31
- eufy Security Video Doorbell E340 (Battery Powered), Dual Cameras with Delivery Guard, 2K Full HD and Color Night Vision, HomeBase S380 Compatible, No Monthly Fee

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-10*