Edison was right; direct current is better than alternating current. Tesla and Westinghouse won the current wars, because it was easy to transform into different voltages without electronics, and they ...

Cars, trucks, RVs, and motorhomes run dual 12-volt batteries for various reasons. Depending on how you wire a two-battery 12-volt system, the result can be a 12-volt system or a 24-volt system—or even ...

Outsiders might not know that electric cars still have lowly 12-volt (usual lead-acid) batteries on board to power the vehicle's 12-volt systems, but they do and Musk wants that to change with the ...

Rivian recently faced a flurry of dying 12-volt batteries on its vehicles, last time because of a botched software update. This must have caused the EV startup a lot of money because it decided to ...