Picture of Power a Flashlight With Fewer Batteries in an Emergency

Don't let the zombie apocalypse or a power outage leave you in the dark. It's easier than you might think to keep your flashlight and other battery-operated devices running even without the proper number of batteries.

When you've finished with this instructable feel free to check out my website and YouTube channel for more how-to's, tutorials and life hacks.

My website: TheBestHobbiesBlog.com

My YouTube channel: youtube.com/TheBestHobbiesBlog

Step 1: Watch this video!

It's only a minute long and you can watch me demonstrate every step!

daveand51 year ago
not wanting to sound negative but
if the foil contacts the case and + terminal, by by battery
if too thin, it can tilt or crush becoming unusable
my idea would be to place a smaller penlight led flashlight inside a larger flashlight capable of also holding a second set of batteries, match tube, etc (like a large 3 d cell flashlight)
just saying you never no what or how long the emergency will be, so be prepared like the boy scouts say.
TamS11 year ago

Bravo ! Another tip for my _"the big one" (earthquake. I'm on the West Coast)_ bug-out backpack. Good info, thanks ;-)

samalert1 year ago

I may have a aluminium foil but not battery intrigues me.

akreitlow1 year ago
Wouldn't the battery knock back and forth, slowly flattening the aluminum foil ? probably use something sturdy to reinforce the foil. Cardboard, small pipe.
ch51 year ago

To make it even more usefull, what I like doing is permanently downgrading the bulb on a big maglite to accomodate 1 less battery than what it took initially ( a 3-battery bulb in a 4-cell lamp for example), and then replacing the missing battery with a small container containing a basic survival kit topped with a strip of aluminium tape for conductivity and sides wrapped in duct tape.

That way you mostly loose battery lifetime, but not much brightness, and will never be caught unprepared :) .

randki241 year ago

good idea.

PhilsTj1 year ago
Good idea. One question though. Can I still use the tin foil to keep my cookies from sticking to the pan?
乌鸦drop1 year ago

so cool

cTsVette1 year ago

This probably won't work with LED flashlights as most of them require a certain amount of voltage to work, but for all the incandescent types it's a good trick to keep in mind.

MIK3 H1 year ago
Very good! Bravo bravo im going to try this out thanks! Pretty cool
The Best Hobbies Blog (author)  MIK3 H1 year ago

Great! Always helps to have done it before.

Carleyy1 year ago

Cool hack!

The Best Hobbies Blog (author)  Carleyy1 year ago

Thank you!

jon_chalk1 year ago

Very well documented. Good work. I clicked on "favorite" for this one.

Glad to hear it=]