Powered by Dragonfly Energy Graphic
FREE GROUND SHIPPING*
American Flag Graphic
PROUD AMERICAN COMPANY
Electrical 101: How to Use a Digital Multimeter

You might be in for a shocking surprise if you’re working with electricity and don’t know how to use a digital multimeter. Safety is one thing that you can never ignore when working with electricity. While a multimeter can help you avoid getting electrocuted, it can also be handy in…

How Long Do Lithium-Ion Batteries Last?

The invention of lithium batteries has completely transformed our world. They power everything from our smartphones and power tools to large off-grid electricity systems and electric vehicles. They’re also extremely energy-dense, low maintenance, and have long shelf lives. But exactly how long do lithium-ion batteries last? And are they really…

What Is a Boat Transformer and Why Is It Important?

A boat transformer could quite literally save a life. But many people don’t realize what a boat transformer is or why it’s important. In this article, we discuss everything you need to know about boat transformers, including what they are, what they’re used for, and whether or not you need…

The Pros and Cons of Flexible Solar Panels vs. Rigid

Flexible solar panels vs. rigid is a question many would-be solar owners have faced in recent years. This innovative technology has changed the game for some solar power systems, but they may not be right for everyone. So how do you know which you should opt for? We’re breaking down…

Solar Charge Controllers: Guide for Beginners

When learning about solar power one of the first things most realize is that solar power cannot be used directly. Because of its fluctuations throughout the day and weather conditions, solar power is not constant and requires some electronics to control it. When using solar to charge batteries they cannot…

Do I Need a Marine Battery Switch on My Boat?

Are you setting up your marine electrical system? If so, you’ve probably heard of a marine battery switch. Marine battery switches typically look like a big red switch near your electrical controls. They usually connect to the heart of your electrical system. But what does a marine battery switch do?…

Power Converters Explained: How to Change DC Power to AC Power

Anyone with a boat, RV, or battery energy storage system needs to know about power converters. Converters and inverters are essential for transforming DC power to AC power and vice versa. They make it possible to utilize all the 110V outlets in your home on wheels/water and charge your batteries.…

Who Invented the Battery? And How We Advanced to Lithium-Ion Batteries

Lithium-ion batteries have completely revolutionized our modern world. They’re energy-dense, compact, and can handle repeated charge and discharge cycles. They make it possible to have smartphones, laptops, electric vehicles, and off-grid solar power setups. And in our day-to-day life, it’s hard not to take them for granted. But have you…

The Dangers of Battery Acid

In lead-acid batteries, acid, as the name suggests, is one of the most important parts of keeping the battery operating but it can also cause serious injury or death. Battery acid is a crucial but little-understood part of a lead-acid battery-powered electrical system. Let’s shine a light on this vital…