Jeep's Wrangler JLs are electrically complicated vehicles. From the two factory batteries under the hood to all of the sensors that run the CAN bus system, these rigs are incredibly sensitive to ...

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 ...

We’ve all experienced that dreaded sound under the hood when you twist the key: Click. Click Click. A dead battery is more of an inconvenience around town (depending where you live), but out in the ...