Having a battery backup feels like you’re prepared for anything—until the lights go out and you realize it’s not actually ...

Wiring a rocker switch isn’t complicated once you understand the logic behind it. Every connection serves a purpose, and when ...

The Battery Capacity History section shows how the capacity has changed over time. On the right is Design Capacity, or how ...

Begin by connecting pin 85 of the relay to a clean ground point on the vehicle chassis or the negative terminal of the ...

One customer at an auto shop had a power drain issue that caused her to replace her car battery three times in one year.

A multimeter might look intimidating, but learning to use this simple electrician's tool will come in handy during a number of every day tasks.

In his home laboratory, Phil – a high school chemistry teacher who also runs a YouTube science channel – discovered that a simple solar panel can ...

Here's an overview some of the major electrical issues to watch out for and learn how to prevent them from happening.

Posts from this topic will be added to your daily email digest and your homepage feed. After a big bend, the battery appears to overheat — but iFixit isn’t worried. After a big bend, the battery ...

A capacitor is an essential component in many electrical and electronic circuits. It stores and releases electrical energy when needed, helping regulate voltage and maintain power stability. Over time ...