Cannot get my Bunker Hill Safe open.

A locksmith might be able to open it for a fee.

Some safes allow a battery to be connected by an external cable, but I don't know on your model.

An article suggest contacting the manufacturer using the phone number on their web site.

https://www.hunker.com/13419279/how-do-i-open-my-bunker-hill-safe-when-the-key-is-lost

Harbor Freight Tools

TECHNICAL PROBLEMS
1-888-866-5797

Monday thru Friday

7am to 4pm (Pacific Time - USA)

https://www.harborfreight.com/household.html?CatPath=All%2BProducts%252F%252F%252F%252FEverything%2BElse%2F%2F%2F%2FSafes&RequestData=CA_CategoryExpand

Hi, Sorry to tell you only Bunker Hill will be able to sort this out. Please leave me feed back: Malcolm Campbell, Thanks.

Call harbor freight in CA and they'll let you know if there is a cure. They have an 8xx number for ordering parts and such, which is also their 'tech support' line.

you can also get some wires feed him into the back contacting the battery terminals hold in there with a 9 Volt, four hands and patieance and then..... you get my drift. Worked for me! :) $

Change batteries ASAP because if your batteries die you will be unable to get into the safe without the key. The batteries are located inside the safe. If you can't open the safe, you can't replace the batteries!!!

There are NO replacement keys available for model #45891. We've tried. I would NOT buy this safe again for these reasons.!!!

Search on "How to open a safe with a potato" and you'll find a youtube video on how to open that safe. All the Bunker Hill safes use the same lock mechanisms which have a critical design flaw if the spring on the solenoid is weak in that the plunger bounces enough to allow the bolt to be thrown open if you can time hitting the front of the safe just right. Of course, if you mount it such that you can't get a good swing in then no problem. There are two adjustment screws to the bolt throw, if your safe is easily opened this way, you might want to adjust these screws so that more of the plunger hits the stop. I couldn't get mine to open with a rubber mallet but it's mounted so you can't get a good swing in.

how do i change combination on bunker hill 45891 safe, i have tried every way i can think of.

Battery died and i can't find the key or the instructions to open the safe

Check this out:
http://www.fixya.com/support/t1062111-bunker_hill_safe

(no need to re-invent the wheel, other experts have given solutions first)

If you have the small electronic Bunker Hill safe with lost keys and dead batteries, this is a potential solution... Take a hammer and strike the top of the safe while attempting to open at the same time. You may need to place on object on top of the safe such as a flip flop shoe to strike with hammer to smooth out the pressure when striking. It should pop open after several attempts.