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 ...

Year by year, lithium-ion battery technology improves, and EV range and performance leap forward. We're now seeing electric pickups trucks with what would've been supercar acceleration not too long ...