How To: Convert Fairy Lights to USB Power-DIY

An easy method for converting those fairy lights that use 3 AA batteries over to a USB power pack. Just 2 small solders and you're in business!

[MotownGal]

Thank you! I was about to throw out the whole box until I found this. The batteries kept slipping. Now, I don't need them!

[LeftMouseButton]

Thank you so much for this video, very succinct and informative! It's also a great way to re/upcycle old USB cables, god knows I have a whole bag of those!

Do you know what might happen if I did this to a light that only uses 2 AA? would it go poof? or just shine brighter?

[yvayva]

one battery neon bat light converted, for a year-round bat-loving house. awesome. thank you! (:

[ZymurgySchrodinger]

That’s fantastic from one type of battery to another type of battery. I want to go from a battery to plug in?

[BrokenFaceRecords]

im about to convert mine later, ,,i hope my wall chargers work as well as your battery pack lol

[hajerm]

Love this!! Thanks for making it ❤ wondering if I need to do something special if my fairy lights only use 2 batteries? Will they just pull the juice they need? Or might I cause a fire if left unattended?

[shywalker]

I know zero about electricity, ohms watt or Volts. If I have a string light that used to AA batteries and has no smart board inside, do I have to use something else soldered between the lights and the USB ? it will be fine plugging it in with a wallcharger from old phone or a powerbank ? This is a nice little project but I dont know the math behind :-(

[jfe]

Im trying to repair 1.25 Dollar tree light. They fell on floor and wire became disengaged from cheap controller. I don't like to throw stuff out. If I super glue wire to little switch will it work, or does it break the contact?

[Mystery-Graphics]

How will i connect the string lights directly to the usb cable...
Without the controller or a circuit board...?

[haticemosaics]

In the end, will the voltage 5V or 3x1, 5V?