






🔐 Never get locked out again — power your safe with confidence!
The HOMEYUER External Power Supply Box is a compact 6V backup battery holder with 2.5mm and 3.5mm jacks designed to provide emergency power to compatible safe boxes. It supports 4 AA batteries and ensures uninterrupted access to safes with electronic keypads, preventing lockouts during battery failure. Lightweight and easy to connect, it’s a must-have security accessory trusted by users for reliable emergency power.




| ASIN | B09NN7VHSV |
| Best Sellers Rank | #69,063 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #113 in Safe Accessories |
| Brand | HOMEYUER |
| Color | gray |
| Customer Reviews | 4.5 4.5 out of 5 stars (158) |
| Date First Available | December 15, 2021 |
| Global Trade Identification Number | 00765343661591 |
| Item Weight | 0.81 ounces |
| Item model number | HYR-EBP1 |
| Locking | Electronic |
| Manufacturer | HOMEYUER |
| Manufacturer Part Number | HYR-EBP1 |
| Material | Plastic |
| Material Type | Plastic |
| Number Of Pockets | 1 |
| Number of Compartments | 1 |
| Number of Items | 1 |
| Product Dimensions | 8.75"L x 2.5"W x 0.75"H |
| Size | 8.75x2.5x0.75 |
| UPC | 765343661591 |
D**D
Worked as Intended
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
S**L
Good quality
This item worked exactly as needed. We have a shelf that has a power supply like this however my husband miss placed it and the batteries in the shelf died. This worked perfectly to plug in and get the shelf to open without having to damage it,
A**L
Worked great!
Worked great! Our safe's battery died without giving us warning to change the batteries. This gadget worked great!
J**S
It’s easy to use and came in super handy
Wonderful device. Got me out of a jam. Highly recommended. 5 stars
T**T
Worked like a champ!
Didn’t realize what this was when one came with my safe so threw it inside and wound up locking myself out of it…bought this one and it worked like a champ, opened up my safe to find the manual keys and one of these units…so now I have two. 🤣
R**B
Access to Barska safe
Couldn’t find my original key or battery pack. Was able to access my Barska biometric safe to replace the batteries.
G**E
Battery
Used for heated goggles and it was perfect
B**.
Defective.
EDIT: I ended up removing the 2.5mm jack and re-soldering the 3.5 mm wires to the battery carriage, and it worked. Leaving the review as 1 star because I reckon it should be sold as a "kit" The 3.5mm jack has 0 continuity between the two contacts. It's either shorted out or not properly connected. Either way it's defective and I can't fix it, I checked all the wiring otherwise and it's fine.
I**M
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
J**S
Did not work for me?
Trustpilot
Hace 1 mes
Hace 1 semana