This suffers from one flaw - no on/off switch. Should be possible to use a magnet and hall-effect sensor as a switch.

This would make a good kit.

The original was very close to our LED/battery project, just a different package:

http://makeprojects.com/Project/Eternal-Flame-Indestructible-LED-Lantern/2092/1#.T-CwQJhX2W8

Subject: [New post] Mini waterproof LED lanterns charge without wires
From: "Hack a Day" <donotreply@wordpress.com>
Date: Tue, 19 June, 2012 8:02 am

Post : Mini waterproof LED lanterns charge without wires
URL : http://hackaday.com/2012/06/19/mini-waterproof-led-lanterns-charge-without-wires/
Posted : June 19, 2012 at 7:01 am
Author : Mike Nathan
Tags : charging, induction, inductive, led, PVC, waterproof, wireless
Categories : led hacks, news

http://hackadaycom.files.wordpress.com/2012/06/inductive-charge-led-lights.jpg

If you're in search of a flashlight that can stand up to the elements, or simply looking for an easy way to spruce up your pool for those hot summer nights, check out these rechargeable PVC LED lights. (http://www.designnews.com/author.asp?section_id=1362&doc_id=245321) Inspired by a post in Make: Magazine featuring Indestructible LED Lanterns (http://makeprojects.com/Project/Eternal-Flame-Indestructible-LED-Lantern/2092/1) , [John Duffy] decided to take the project one step further.

crude schematics at

http://downloads.deusm.com/designnews/20120613-build-instructions-w-schematics.pdf

While he liked Make's iteration of the waterproof lantern, he thought it would be best to permanently seal the lights for maximum durability. Not satisfied with a one-use light, he equipped the PVC lanterns with a single rechargeable AA battery, step-up circuitry to drive the LED, and an inductive charging coil.

His floating, waterproof lights sport a slightly bigger footprint than their predecessors to house the extra electronics, but we think that’s more than a fair trade off considering they can be charged wirelessly.

Place your Digikey/Mouser/Jameco orders now and check out [John’s] how-to video - you just might get some of these built in time for the weekend!

[via HackedGadgets (http://hackedgadgets.com/2012/06/18/diy-wirelessly-charging-led-light-made-from-pvc-plumbing-parts) ]

Read more of this post (http://hackaday.com/2012/06/19/mini-waterproof-led-lanterns-charge-without-wires/#more-77323)

Add a comment to this post: http://hackaday.com/2012/06/19/mini-waterproof-led-lanterns-charge-without-wires/#respond

--
WordPress.com | Thanks for flying with WordPress!