Multifunction devices are great...as long as you can find uses for all (or at least some) of those functions that you end up paying for.

A DC-to-DC charger uses excess engine-alternator current, typically redirected from the starting battery bank, to charge the house battery bank. This can also be performed by an automatic charging ...

What's the difference between amperes and watts, and what does voltage have to do with them? Here's how you can tell which ...

️ Editor's note: This article was updated with new information in December 2025. Dead batteries are a predictable reality for any car that spends more time parked than driven. Battery discharge does ...

Leaving your Milwaukee batteries on the charger overnight is something a lot of people do without a second thought. But when it comes to keeping your tools ready and your batteries healthy, it's worth ...

Portable solar panels and solar battery chargers are easy-to-use devices that provide backup power to anyone who happens to be away from a working power outlet, including hikers, car campers, and even ...

This is no joke: I recently woke up from a nightmare where my motorcycle wouldn’t start. Subconsciously, I’d been thinking about the fact I hadn’t ridden it in seven weeks and knew that was taking a ...

Battery health in EVs declines approximately 2.3% annually, with fast charging and high temperatures accelerating degradation ...