I don’t often work with 12-volt systems, but I can appreciate that everything you’d need to build one could be procured at your local auto-parts store. A much better and safer solution is purchasing ...

The battery died on my riding lawn mower. I was wondering whether it is safe to jump-start the lawn mower with my car, and if so, do you have any tips on how to do it? RAY: Carefully. TOM: Every year ...