Start a Campfire with Any Nine Volt Battery

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Did you ever go hiking into the mountains when it rained and everything got wet? If everything includes the only box of matches, then it is cold comfort not hot coffee in the morning. The solution is as simple as popping a fresh nine volt lead battery in your pack so you can use it to start a campfire.

This is not something out of the lost kingdom, although we will assume you manage to lay your hands on some dry kindling, sticks, and branches. Does it help if we tell you the cloudburst was local? Let’s move and lay the fire boy-scout fashion with a stack of small sticks over tinder.

Are You Ready? Let’s Start a Campfire

start a campfire
Steel Wool: Johan: CC 3.0

Next, get some steel wool out, and form it into golf ball size lump making sure you do not squash the strands together.

We hope we did not hear you right when you said you don’t shine pot bottoms when out in nature. If necessary, pop a fresh nine volt battery AND some steel wool in your pack before you start.

Next, push the steel wool ball into the tinder and press the battery terminals against it. You should see a spark running through the material. The heat will light your fire. If you do not believe us, watch this video

https://www.youtube.com/watch?v=qgB69B4N0J0

How the Battery and Steel Wool Gig Works

If we get enough electric current running through a resistor, the resistor heats up the same way as the filament in a pop-up toaster.

start a campfire
Camp Fire: Azadeh Farshidi: CC 4.0

We just need to get the balance right. Too little steel wool, there is no fire. Too much, it melts.

Therefore practice makes perfect before you need to start a campfire. Experiment with different types of steel wool, and different brands of batteries.

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About Author

Electricity has always intrigued me. I have been writing about batteries and energy storage for more than ten years, and have published over 4,000 articles on this website. During that time, I have researched developments across lead-acid, lithium-ion, sodium-ion, flow batteries, and emerging energy-storage technologies. My goal is to explain complex battery concepts in clear, practical language that anyone can understand. My writing career began unexpectedly after leaving the corporate world. What started as a search for a new direction gradually became a fascination with batteries, renewable energy, and the science that powers modern life. Writing may not have made me wealthy, but it has given me the opportunity to explore an industry that continues to evolve in remarkable ways.

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