Whether you're dealing with a dead battery on a cold morning or just trying to maintain your car during long periods of no driving, knowing how to properly charge a car battery is important. A ...

I salvaged a large batch of 18650 cells from old laptop batteries and needed a way to figure out which ones were still worth ...

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 ...

Automatic battery chargers can be awesome tools to have in the shop. They take all the guesswork out of making sure your batteries are full of that sweet, sweet juice you need to crank your engine to ...

Most of us — casual users and enthusiasts alike — are forever searching for smartphones with the longest battery life. And while fast charging keeps us topped up every day, the absence of replaceable ...

Every car owner has, at some point in their vehicle ownership journey, dealt with a drained battery. If you haven't, consider yourself lucky. You might have left your car at a shop, gone on vacation, ...