This project details a small & simple, but very powerful USB charger for your mp3 player, camera, cell phone, and just about any other gadget you can plug into a USB port to charge! (See below for compatibility tests.)
The charger circuitry and 2 AA batteries fit into an Altoids gum tin, and will run your iPod for hours! 2.5x more than you’d get from a 9V USB charger! (See Process for math/calculations) You can use rechargable batteries too.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Prototyping PCBs with Particle, a guide from a pro in the field #makerbusiness
Wearables — Learn about stretch
Electronics — Even lower power!
Biohacking — Nectome’s Brain Preservation and Backup Service Plan
No comments yet.
Sorry, the comment form is closed at this time.