DIY 9 Volt Battery Connector for Free

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Introduction: DIY 9 Volt Battery Connector for Free

Usually cheap 9 volt battery connectors that you can buy are flimsy and don't last for long. Here is a way to make yourself a battery terminal that will last. Oh, did I mention it's almost free?

You will need:

* dead 9 volt battery
* pliers
* sharp knife
* soldering iron + solder + flux
* red and black wire
* a piece of heatshrink tube
* a thin ziptie

Step 1: Rip Apart a 9 Volt Battery

Take the pliers and rip apart a dead 9 volt battery you have lying around. You'll get a piece of plastic with terminals on it.

Step 2:

Using a sharp knife punch two square holes in the plastic

Step 3:

Strip and tin a couple of wires. Preferably - black and red. Note the polarity - the red wire goes to the "crown like" terminal.

Step 4:

Solder the wires to the terminals. Watch the polarity! Don't overheat while soldering, plastic tends to melt rather quickly.

Step 5:

Put a piece of heatshrink and heat it with a soldering iron or a lighter

Step 6:

Carefully bend the heatshrunk wires back and tighten a ziptie thru the holes you made earlier.

Now you have a proper 9 volt battery connector.

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    13 Discussions

    0
    robfed123
    robfed123

    Question 7 weeks ago

    Hi, hoping folks here can help me.
    I have a nest Yale lock that can be charged by directly contacting 9v battery to terminals exposed on bottom of the lock. Unfortunately I can’t fit a 9v battery under it because another lock is there. I was hoping I could buy or build a connector that can connect to the 9v and have on the other end another connector to touch to the Yale lock. any ideas appreciated.

    0
    JoseJ101
    JoseJ101

    1 year ago

    I have a question what kind of wiring do you need for a 9 volt battery snap connector? I mean like what is correct size & type of wiring, because one of snap connectors messed up and I am planning on fixing it myself i just need to know what are the correct type and size of wires needed to get the job the done. Thanks

    0
    MervynC2
    MervynC2

    Question 2 years ago on Step 6

    why do we have to use a dead battery

    0
    loganhudson
    loganhudson

    Answer 2 years ago

    What's the fun in not? :`)

    0
    MervynC2
    MervynC2

    2 years ago

    can you please post a photo of the finished product

    0
    MervynC2
    MervynC2

    Question 2 years ago

    can you post a photo of the finised product please

    0
    yankeesat1
    yankeesat1

    2 years ago

    So i did this project becuase i was upgrading an r/c car from 1.5 v to 9v and i did it all but had one qestion, were u suposed to reverse the polarity or keep it the same. Also the battery's were heating up, does any one know what that mean?

    0
    Rayregula
    Rayregula

    3 years ago

    Just be carfull not to puncture the battery

    0
    DanielZ25
    DanielZ25

    4 years ago

    I ripped out mine from the bass guitar. Weekend saver!! Tnx

    0
    Game players
    Game players

    4 years ago

    If you dumpster diving at radio shack they throw away 9 v all the time

    0
    svesce
    svesce

    4 years ago

    Great tip. Saved us a trip to the store!

    0
    hmuhammad1
    hmuhammad1

    6 years ago

    thanx 4 share :) will do it for sure!

    0
    sctirvn687
    sctirvn687

    6 years ago on Introduction

    Great idea. Never thought of it. Would have saved me from buying them. Thanks for posting!