The two-sided Epiphany onE Puck converts the warmth of your hot cocoa or iced beverage into power for your phone. The lightweight device is portable enough to store in your purse or day bag for emergencies.

The wireless charger works with all Apple products, Android devices and phones that use an USB drawing 1000 mA or less power.

The charging coaster's maker is Epiphany Solar Water Systems a company dedicated to making low-cost products that can be used anywhere, especially in places where residents have little access to water or electricity.

The team of engineers behind the Epiphany onE Puck has been working on its heat and engine technology for 12 years. The onE Puck is available on Kickstarter to backers who donate $99 and up. With 55 more days on the crowdfunding platform, the project has raised $55,000 of its $100,000 goal.

[via GizMag]