Does your cell phone get warm while charging or with excess usage? Well, that heat will shorten the life of your battery over time. I came up with an instructi
able to help with that possible problem. In this Instructable, I repurposed a Peltier cooling system used in a portable drink cooler. Let's go check it out...
Step 1: Parts
Power source, 12vdc
Assorted Misc. other things