You depend on your car not to leave you stranded, so don't leave your car to die. We put three of the top brands to the test ...

This is where a portable charger, battery pack, or power bank becomes invaluable. By connecting your phone to a portable charger, you can recharge your device without being tied to one location.

It also includes a hinged base, which allows the charger to be aimed in different directions, depending on your device's position in the car. The charger comes in both gray and black as well.

you should really invest in a charger that is capable of running some capacity tests against the cell. Or if you’re a bit more adventurous, you can build this “Battery Health Monitor ...

All of this depends on the charger itself of course, as results can vary from one brand to the next. When charging your battery, be sure your garage is well ventilated or that your car is outside ...

There are also portable battery chargers that hold enough juice to give your car's battery a jolt. A less obvious way to keep your battery charged is by keeping the vehicle in park and letting ...

However, they charge slowly; it would take around four days to fully charge your car with a Level 1 charger. These stations usually cost between $300 and $600. Level 2 chargers, on the other hand ...

There’s a strong case for dedicated motorcycle battery ... car batteries, for example, it’s still an expense you could do without. What to consider when buying a motorcycle battery charger ...