Solar window chargers have several advantages when compared with other charger types. You can stick this DIY solar window charger to the inside of a glass window with the solar panel facing out and ...

Here is the simple circuit to charge 6 V, 4.5 Ah rechargeable Lead-acid battery from the solar panel. This is a simple solar battery charger circuit designed using LM317 voltage regulator and is used ...

With endless summer days still aplenty, there’s no better time to invest in a solar charger for all your gadgets. However, Joshua Zimmerman of the DIY site Instructables doesn’t think you need to ...

As far as electric vehicles go, electric bicycles are famously energy-efficient. Most can easily travel 100 miles (160 km) on around $1 of electricity. But what if instead of paying for that ...