Ellis Gibson (B.Sc. in Mechanical Engineering)

You’ve been driving for years and never had to think about your car battery. But now, as you turn the key, you hear a sickening clicking noise. Your battery is dead. You’re stuck. And you have to figure out how to buy a new one. But how do you know how big your battery should … Read more

You may be wondering how long your AA batteries will last. You may be surprised to know that it depends on the load. For example, a 2,500 mAh AA alkaline battery could power a device that draws 250 mA of current for 10 hours. However, if the load draws 25 mA of current, the battery … Read more

If you are like me, you are always on the go and constantly using your phone. My phone is my life line to the outside world and I am constantly needing to charge it. I have had to ask myself “how many hours does a 3000mah battery last?” I did some research and found that … Read more

During a power outage, you want your sump pump to be able to last. Based on this article, you can expect a new, fully-charged battery to last 5-7 hours of continuous pumping and 1-3 days of non-continuous pumping. This will depend on the frequency of the pump running. So if you want your sump pump … Read more

If you’re anything like me, you’ve wondered how many joules are in your car battery. Am I right? Of course I am. You’re probably also wondering how this information can help you. Well, I’m here to tell you that it can help you a lot. By understanding how many joules are in your car battery, … Read more

I’m sure you’re wondering how many joules are in a AA battery. Well, I did some investigating and I found that a AA battery has about 10,000 Joules of stored energy. This information is based on a study done on February 13th, 2015. I’m sure you’re wondering why I’m telling you this information. Well, I’m … Read more

A car’s battery is one of the most important parts of the vehicle. Without a battery, a car cannot start. Batteries store energy that is used to start the car and to power the car’s lights. A battery is made up of cells that store chemical energy. This chemical energy is converted into electrical energy … Read more

You might be wondering how many leds you can power with a AA battery. If you operate at low enough current, you might be able to have 8 strings of 2 LEDs with 8 current limiting resistors. If you use a switching regulator, you can boost the 6V from 4 AA batteries high enough to … Read more

The 9V battery is one of the most popular batteries on the market. It is used in a wide variety of devices, from smoke detectors to remote control cars. But how many mah 9v battery does it have? This article will answer that question and provide you with the technical specifications of the 9V battery. … Read more

Are you looking for how many mah are in aa batteries? You’re in the right place! In this article, we’ll discuss AA alkaline and AA NiMH batteries and their capacity ratings. You’ll learn about the difference between the two types of batteries and how to determine which one is right for you. So, how many … Read more