Your best bet, sans solar, is to get a variable voltage lab power supply with a volt and amp meter built in, that goes up to at least 40V. Set it to 40V, connect the battery, and watch the current.

Pairing solar panels with energy storage is becoming increasingly popular -- and for good reason. Homeowners who install a battery alongside their rooftop solar array unlock the ability to store solar ...

The Schumacher Electric 2.4W Solar Car Battery Maintainer is on sale for $23 at Amazon, 42% less than the $40 it’ll run you ...

Improved performance and affordability make portable solar chargers an attractive power option when there's no wall outlet in sight. Executive Editor David Carnoy has been a leading member of CNET's ...

David Kuchta, Ph.D. has 10 years of experience in gardening and has read widely in environmental history and the energy transition. An environmental activist since the 1970s, he is also a historian, ...

Discover how electric vehicles, home batteries, smart chargers, and grid integration are reshaping Australia’s clean-energy future. Learn about EV home charging integration, solar-powered EVs, VPPs ...

Portable solar panels and solar battery chargers are easy-to-use devices that provide backup power to anyone who happens to be away from a working power outlet, including hikers, car campers, and even ...

There's been a lot of handwringing about the future energy demands of electric vehicles and AI data centers. But if Tesla's ...

Charging EVs in parking lots with solar power is a marriage made in heaven. But the general rule for any solar or charging installation is that it be grid tied, so it can charge vehicles from the grid ...

DIY solar power projects have always been fascinating to me. I kind of wrote the book on the subject. And since electric bikes have always been a huge part of my life, combining the two has always ...