---
product_id: 560758597
title: "External Battery Pack 2"
brand: "homeyuer"
price: "HK$275"
currency: HKD
in_stock: true
reviews_count: 6
category: "Homeyuer"
url: https://www.desertcart.hk/products/560758597-external-battery-pack-2
store_origin: HK
region: Hong Kong
---

# Instant safe access during battery failure 6V backup power Dual jack connectors (2.5mm & 3.5mm) External Battery Pack 2

**Brand:** homeyuer
**Price:** HK$275
**Availability:** ✅ In Stock

## Summary

> 🔐 Never get locked out again — power your safe with confidence!

## Quick Answers

- **What is this?** External Battery Pack 2 by homeyuer
- **How much does it cost?** HK$275 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/560758597-external-battery-pack-2)

## Best For

- homeyuer enthusiasts

## Why This Product

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

## Key Features

- • **Dedicated Support:** One-on-one customer service to solve any access issues swiftly.
- • **Lightweight & Portable:** Compact design (8.75x2.5x0.75 inches) for easy storage and on-the-go use.
- • **Universal Compatibility:** Includes two jack sizes to fit a wide range of safes with female plug connectors.
- • **Emergency Access, No Stress:** Plug in and unlock your safe instantly when internal batteries die.
- • **Power Up Your Peace of Mind:** Reliable 6V external battery pack ensures your safe never locks you out.

## Overview

The HOMEYUER External Battery Pack is a compact, 6V backup power source designed for safes with female plug connectors. Featuring dual 2.5mm and 3.5mm jack connectors, it provides emergency power to keypad safes, enabling access via fingerprint or passcode even when internal batteries fail. Lightweight and portable, it comes with dedicated customer support to ensure hassle-free operation.

## Description

Shop HOMEYUER External Power Supply Box with 2.5mm and 3.5mm Jack for Some Safe Box with External Battery Supply, 4 AA Battery Holder with Wires, 6V Backup Power Source for The Safe Box. Free delivery and returns on all eligible orders.

Review: This item - Did not work for me?
Review: It came with 2 plug connectors with different sizes, the smallest of them fit my safe perfectly and i was able to get the safe open 👍🏻 Delivery was fast , it only took 4 days , all the way from California US to Riyadh KSA

## Features

- The external battery pack is suitable for all keypad with female plug connector.
- The battery pack will supply power to the module, allowing you to access the safe with your registered fingerprints or pass code to change the batteries.
- The external battery pack is for some safe box,gun safe,key safe with the female plug connector on keypad of safe box.
- In the event of battery failure, this External Battery Pack can be used to access the Safes by plugging it into the module on the safe.
- If you encounter any problems or difficulties, please contact us and we will provide one-on-one service to help you solve your problem.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NN7VHSV |
| Batteries included? | No |
| Best Sellers Rank | 514,710 in DIY & Tools ( See Top 100 in DIY & Tools ) 286 in Home Security & Surveillance Biometrics |
| Brand | HOMEYUER |
| Color | Grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (157) |
| Date First Available | 15 Dec. 2021 |
| Department | Unisex |
| Item display length | 8.8 inches |
| Item display width | 2.5 inches |
| Item model number | HYR-EBP1 |
| Manufacturer | HOMEYUER |
| Material type | Plastic |
| Number of items | 1 |
| Product Dimensions | 22.35 x 6.35 x 1.78 cm; 23 g |
| Size | 8.75x2.5x0.75 |
| Style | two kind jack |

## Product Details

- **Brand:** HOMEYUER
- **Colour:** Grey
- **Material:** Plastic
- **Number of pockets:** 1
- **Product dimensions:** 22.2L x 6.4W x 1.9H centimetres

## Images

![External Battery Pack 2 - Image 1](https://m.media-amazon.com/images/I/512l-OjzYXL.jpg)
![External Battery Pack 2 - Image 2](https://m.media-amazon.com/images/I/61hx8ZZTP3L.jpg)
![External Battery Pack 2 - Image 3](https://m.media-amazon.com/images/I/61LxFhkRZEL.jpg)
![External Battery Pack 2 - Image 4](https://m.media-amazon.com/images/I/617PHMUQKvL.jpg)
![External Battery Pack 2 - Image 5](https://m.media-amazon.com/images/I/61KEMqfjICL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: Will this work on sentrysafe H060ES?**
A: Size of the battery case was a match with my safe. Wiring was not, a couple changes and it worked great.

**Q: Anyone know the if the jack is 1.5mm or smaller?**
A: the jack only two kinds,one is 3mm,other is 1.5mm,you can used ruler to check the size.

**Q: Will this power a 2A4Life safe?**
A: yes

**Q: Will this battery backup work for an edge safe?**
A: It worked great to power up my Sentry Card Swipe safe.  Look in the owner’s manual (I found mine online) to see if/where the headphone-looking plug can fit in an edge safe.   All you need is to get the safe to have the power to open it, then you can change the inside batteries.

## Customer Reviews

### ⭐ This item
*by J***S on 19 April 2025*

Did not work for me?

### ⭐⭐⭐⭐⭐ Review
*by I***M on 21 April 2024*

It came with 2 plug connectors with different sizes, the smallest of them fit my safe perfectly and i was able to get the safe open 👍🏻 Delivery was fast , it only took 4 days , all the way from California US to Riyadh KSA

### ⭐⭐⭐⭐⭐ Review
*by D***D on 22 December 2025*

Worked exactly as intended. Was able to get into my safe and then change the batteries. Saved me from having to call a locksmith or buy a new safe

## Frequently Bought Together

- HOMEYUER External Power Supply Box with 2.5mm and 3.5mm Jack for Some Safe Box with External Battery Supply Like BARSKA Safe, 4 AA Battery Holder with Wires, 6V Backup Power Source for The Safe Box
- HOMEYUER External Power Supply Box with six Kind Jacks and ON/Off Switch for Various DC Equipment,Like Some Kinds Safe Box,Electronic Cabinet Lock,Toys,LED Lighting and so on.Output DC 6V
- Barska External Battery Pack – Backup Power for Biometric Fingerprint Safes, Compatible Only with Select Barska Models, Access During Battery Failure

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**Shop now:** [https://www.desertcart.hk/products/560758597-external-battery-pack-2](https://www.desertcart.hk/products/560758597-external-battery-pack-2)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-25*