This brutal winter's brutal frigid temperatures are making jump starters a must-have in the trunk of every car, even ones ...

Phone battery life has always been important, but which brands consistently offer the longest battery life? After extensive testing, we've found the two leaders.

The world’s largest battery maker says its new 5C EV battery can fully charge in 12 minutes while lasting over one million ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Parasitic drains can be extremely annoying, but they're not impossible to identify. Here are some ways to find a parasitic ...

Modern car batteries have a resting voltage of 12.6 volts, and will run at 13 to 14 volts once the alternator kicks in and ...

Your car's battery is an essential component that many drivers simply don't think about much, but some simple steps can help ...

The Neoteck 3-in-1 pen multimeter is a great choice for DIYers and amateur tinkerers, especially at its price.

The process is similar to boosting the battery of a gas-powered vehicle, but with a few key exceptions and precautions.

If your car battery is three or four years old, the first serious cold snap could be the morning it quits. Here’s how to spot the warning signs. Cold weather exposes weak car batteries, increasing ...

You try to turn on your car, and it just won’t start. Maybe the dashboard doesn’t even light up. A likely cause: The 12-volt battery is dead. All cars lose a little battery power when parked. If you ...

Before heading out on vacation, some drivers remove their car battery to stop it from draining by the time they return. But is that actually necessary? It depends on your battery and how long you'll ...