Instructables

How to recharge a glow-stick

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  This method of charging a glow-stick actually works, but each time you recharge it the glow gets a little fainter. It can still be used for pretty long though. Also this is an entry in the flash light speed contest so if you liked it please vote for me.
 
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Step 1: Stick it in the freezer

Picture of stick it in the freezer
  This is basically the only real step here and all you have to do is put one of your used glow-sticks in the freezer over night.

Step 2: The last step

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  Take your glow-stick out of the freezer,crack it,shake, and like magic it glows!
jbarnes2515 days ago
Glow sticks glow by mixing 2 chemicals together witch react and produce light there is no way to reverse this reaction once its done its done and no amount of freezing will undo it, a low temperature will only slow the reaction but only by minutes, glow sticks are a one use item and according to this freezing a glow stick reverses a chemical reaction, unmixes 2 fluids, puts one back in a glass tube and then unbreaks the glass...
Really
I've been doing this for many years and my only sugestion is to not put it in the ice chest. I did once and the blade that dispenses the ice broke the stick open. It was funny because my mom had a party that night and no one could figure out why the ice was glowing
Isn't it toxic?
no mom...the ice cubes have always glowed in the dark!
swinfos (author)  AnOverdoseofZac3 years ago
lol
sueman23 years ago
For thoose who wish to know more:

glowsticks work on chemical reactions, a reaction can speed up when their is movement, heat, etc. So cooling and keeping the stick still makes the reaction slow down. then by moving it around and heating it up, the reaction speeds up and light back up.

The best thing to do to get them back to normal is to microwave them for 5 seconds. and i mean seconds. 15 seconds would make any glow-stick spray everywhere. so 5 seconds is a safe level.
Have you ever done it before?
Sorry but I'm afraid of do it
I have been able to get this to work before, but the real trick is to get it into the frezer while it is still glowing. If it has gone dim to the point it cannot be seen at all, then it has lost the chemical reaction completely. Of course you could always just replace the batteries. The batteries are normally on the shelf with the buckets for the prop wash and the keys to the flight line.
I've heard that's also where they keep the headlight and blinker fluids too!
yours31f Squee8 months ago
They usually keep the muffler bearings near them too!
ssingh462 years ago
just put it in the microwave for 30 seconds and done
Wally_Z2 years ago
When I did it, they didn't freeze to the point that they had to be broken again, I just had to hold them in my hand. They kind of worked after warming them in my hand again after them being dead for a week. I will try DEEP freezing them so they can be re-broken. I will also try putting them in hot water which will probably look really cool.

Also, look up glowstick spinning/raving. It looks amazing. I have a video of it on my Youtube channel if anyone wants to check it out. http://www.youtube.com/user/wjz10595.
Speedmite3 years ago
It only pauses the chemical reaction by slowing it down in a cold enviroment. You are only delaying the glow. But if you want to keep a broke glowstick, this is a good way.

To make it glow brighter, heat it up. Dont bust it though or pt it in the microwave. Poisonous gases when burnt.
cdousley3 years ago
ive heard of this method but i can never get it to work ): maybe just becase my glow sticks were to old
I second that, it only slows down reaction time. You can't re-crack it.
yep the cracking is the sound of glass breaking that mixes the chemicals and starts a reaction
HeyJD cdousley3 years ago
I wouldn't say it's glass breaking... But yeah it's something breaking inside...
Actually, when you bend the glow stick, you're breaking a glass vial that hold the other chemical for the reaction.
yep thats what this guy says http://www.instructables.com/id/Make-Glow-Sticks-The-Science/
HeyJD cdousley3 years ago
Yeah I know what happens. It's just that I was told in a book it was a tube of breakable plastic inside, not glass.
cdousley HeyJD3 years ago
hmm. idk much about those all i ever seen was the video but it doesn't sound much like glass to me.
it actually is glass. i've cut many of these open for various reasons lol
swinfos (author)  13vamper373 years ago
Yeah these one have glass in them ( I also find intrest in cutting glowsticks.)
yeah it is glass cos I've cracked them before (by accident) :) oh and by the way the liquid stains!! C.B. :D
defiantly glass, or really sharp plastic.
Hmm.... And what reason would that be?
lol!
jgfish HeyJD3 years ago
Last time I cracked one open it was glass
tobyscool3 years ago
Does recharge means already cracked cuz in
step two says:
Take your glow-stick out of the freezer,crack it,shake, and like magic it glows!
Daddio_UK3 years ago
Putting them in the freezer just stops them, and in hot water makes them light up more, they don't re-charge.
Max0863 years ago
Cool beanz now I can keep these things longer, KUDOS my man!!
Cool. You can also keep a glow stick glowing for a long time by putting it in the freezer
Nice little trick but it has never been successful for me :( Nice 'ible though :)
swinfos (author)  thebeardedoneUK3 years ago
Thanks
nice instructables! although i recomend puting your glowstick in the freezer in the morning so that you can use it at night. : )
swinfos (author)  didgitalpunk3 years ago
Thanks!
your welcom
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