---
product_id: 479970089
title: "eufy Rechargeable Battery for eufyCam S4, S330 3-in-1 Video Smart Lock, E330 Video Smart Lock, Smart Lock S230, Smart Lock E31 and Smart Drop"
brand: "eufy security"
price: "894 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Eufy Security"
url: https://www.desertcart.dk/products/479970089-eufy-rechargeable-battery-for-eufycam-s4-s330-3-in-1
store_origin: DK
region: Denmark
---

# Rechargeable & eco-friendly Hot-swappable without device removal 10,000 mAh high capacity eufy Rechargeable Battery for eufyCam S4, S330 3-in-1 Video Smart Lock, E330 Video Smart Lock, Smart Lock S230, Smart Lock E31 and Smart Drop

**Brand:** eufy security
**Price:** 894 kr
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** eufy Rechargeable Battery for eufyCam S4, S330 3-in-1 Video Smart Lock, E330 Video Smart Lock, Smart Lock S230, Smart Lock E31 and Smart Drop by eufy security
- **How much does it cost?** 894 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/479970089-eufy-rechargeable-battery-for-eufycam-s4-s330-3-in-1)

## 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

- • **Perfect Backup:** Never get locked out—always have a charged spare ready.
- • **Power That Lasts:** Up to 6 months of uninterrupted smart security.
- • **Compact & Lightweight:** Only 6.7 oz, designed for easy handling and storage.
- • **Seamless Battery Swap:** Replace batteries in seconds—no device downtime.
- • **Eco-Smart Rechargeable:** Save money and the planet with reusable lithium-ion power.

## Overview

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.

## Description

desertcart.com: eufy Rechargeable Battery for eufyCam S4, S330 3-in-1 Video Smart Lock, E330 Video Smart Lock, Smart Lock S230, Smart Lock E31 and Smart Drop : Electronics

Review: 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.
Review: 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.

## Features

- 10,000 mAh Capacity compliments each advanced feature.
- Rechargeable: Save you money and enjoy the convenience that single-use batteries never have.
- Easily Swap the Battery Without Moving the Device.

## Technical Specifications

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

## Product Details

- **Battery Capacity:** 10000 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** eufy Security
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Recommended Uses For Product:** Smart Lock

## Images

![eufy Rechargeable Battery for eufyCam S4, S330 3-in-1 Video Smart Lock, E330 Video Smart Lock, Smart Lock S230, Smart Lock E31 and Smart Drop - Image 1](https://m.media-amazon.com/images/I/61KUioF21bL.jpg)

## Questions & Answers

**Q: I need to lock the door from otside  on left side and inside right  and im confused  which one have to buy .**
A: You can purchase one of our smart locks, as you can do the calibration.

**Q: Does this work with the previous 2k doorbell?**
A: It doesn't work with the  previous 2k doorbell

**Q: Does this have a motion sensor that automatically turns on camera and alerts phone through messaging ?**
A: The Smartdrop box when it's set up the camera will activate when it detects someone approaches but it will only record video if you have the Eufy Homebase. Without the Homebase, you will only get a notice from the phone app that the Box was OPENED & CLOSED...But No Video.

**Q: Does this work with E340?  Or will E340 battery be released soon?**
A: No. E340's battery will be released soon.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Spare
*by P***L on February 20, 2025*

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.

### ⭐⭐⭐⭐⭐ It Pays to have a spare Battery
*by J***T on September 8, 2025*

Battery Back up for Eufy door lock. It is worth having a spare when the other is on the charger.

### ⭐⭐⭐⭐⭐ Battery lasts a long time
*by R***M on June 10, 2025*

Took six hours to charge but lasts weeks when installed. Changing batteries is my simpler that charging the battery in the lock assembly.

## Frequently Bought Together

- eufy Security Rechargeable Battery for S330 3-in-1 Video Smart Lock and Smart Drop
- eufy Security Video Smart Lock S330, 3-in-1 Camera+Doorbell+Fingerprint Keyless Entry Door Lock, Smart Wi-Fi Deadbolt for Front Door, App Remote Control, SD Card Required, Chime Included
- eufy Security Square Door Handle - Easy Installation, Fits All - Matte Black

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**Shop now:** [https://www.desertcart.dk/products/479970089-eufy-rechargeable-battery-for-eufycam-s4-s330-3-in-1](https://www.desertcart.dk/products/479970089-eufy-rechargeable-battery-for-eufycam-s4-s330-3-in-1)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-07*