Turn a playing card into a solar charger for AA batteries

Turn a Playing Card Into a Solar Charger for AA Batteries

If you're looking for a space-saving alternative to recharging your AA or AAA batteries, you can put together a solar-powered battery charger out of nothing but a playing card and a few other small materials.

Smart Hydro smart bathtub keeps your bathwater from getting cold, cleans itself!

Smart Hydro smart bathtub keeps your bathwater from getting cold, cleans itself!

Pinterest
Search