Breaking News
Inside CES 2026: The Coolest Power Stations I Found
The Year Ahead in Sino-American Relations
Damning declassified documents and emails released by the CIA reveal...
There are "Ghost Daycares" all throughout California. BILLIONS more stolen
Top Tech News
World's most powerful hypergravity machine is 1,900X stronger than Earth
New battery idea gets lots of power out of unusual sulfur chemistry
Anti-Aging Drug Regrows Knee Cartilage in Major Breakthrough That Could End Knee Replacements
Scientists say recent advances in Quantum Entanglement...
Solid-State Batteries Are In 'Trailblazer' Mode. What's Holding Them Up?
US Farmers Began Using Chemical Fertilizer After WW2. Comfrey Is a Natural Super Fertilizer
Kawasaki's four-legged robot-horse vehicle is going into production
The First Production All-Solid-State Battery Is Here, And It Promises 5-Minute Charging
See inside the tech-topia cities billionaires are betting big on developing...
Storage doesn't get much cheaper than this
You Can't Just Link Batteries Willy Nilly and Expect Everything to Be OK
Anyone who has taken introductory physics will recognize this famous question:
Why can't you start your car with 8 AAA batteries instead of one 12 volt car battery?
Eight AAA batteries do add up to 12 volts, but they still can't provide enough electrical current to run the starter motor. But that's not the whole story. Any battery has a limit on the maximum current it can produce.
To explain why, I'll make a model to represent a real battery.
The pair of vertical long-short lines (labeled V0;) right of center represent the ideal battery. Or, in other words, how much current the real battery would produce if it wasn't confounded by resistance (represented by the squiggly line labeled Ri). Yes, all of this ideal battery/confounding resistance stuff is going on inside the actual battery.