Every car needs a battery to help it start and power its electronics. Here's how many volts this all-important component ...

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

If your battery is dying on you, the cause might be what's known as parasitic drain. Here's what it is, how it happens, and ...

Discover how to make a homemade battery capable of charging your smartphone using simple materials like copper foil, aluminum ...

You turn the key and nothing happens. The thermometer reads 10°F and your dashboard is dead black. Your battery is either ...

Jump starting a car with a dead battery is a fairly simple procedure, but make sure you check these things before attempting it on a modern vehicle.

The MM67 is an auto-ranging True RMS Multimeter, ideal for troubleshooting electrical systems. It measures AC and DC voltages ...

Testing your battery regularly will prevent a dead battery from ruining your day. There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up ...

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.

Using Android Auto can be convenient, but it can also quickly drain your phone's battery. Find out how to easily fix this ...

Microsoft has a free Windows 11 battery health tool to diagnose your PC - how it helped me ...

Battery dropping too fast? Consider these 12 expert-approved tips to make your device last up to hours longer.