Powered by Dragonfly Energy Graphic
FREE GROUND SHIPPING*
American Flag Graphic
PROUD AMERICAN COMPANY
Are Lithium Solar Batteries Really the Best for Solar Panels?

Lithium solar batteries are the current trendy battery of choice when it comes to solar systems. Solar enthusiasts rave over these batteries and often dismiss the premium price tag, but are they worth it? Are these batteries really the best option for solar panels? Let’s jump in and see! What…

How To Choose The Best Marine Battery Charger For Your Boat

Nothing can put a damper on your boating fun faster than a poorly charged or dead battery, be it your starting boat battery, trolling motor battery, or house battery. If charging is so important, so must be the marine battery chargers you choose for the job, including knowing whether you…

What Is Voltage Drop and How To Calculate It

Whether you’re designing a 120-volt electrical system for your house or a 12-volt system for your RV, it’s critical to understand what voltage drop is and how to calculate it. Correctly calculating the voltage drop in your system will help keep you safe and make sure all of your electronics…

What’s The Difference Between Wiring Batteries in Series Vs. Parallel?

Understanding the difference between wiring batteries in series vs. parallel is critical if you have a multiple battery system. How you connect your batteries will determine how they perform in different applications. Let’s look closer at how to wire batteries in series vs. parallel and when each method is appropriate. …

Can a Wind Turbine Power My RV?

You’ve probably heard of solar power systems for your RV – but they aren’t the only choice for environmentally conscious RVers or those looking for off-grid power solutions. Wind turbines for RVs have become more common in recent years as technology has improved. So what do you need to know…

What Is An MPPT Charge Controller?

The most basic functionality of a solar power system is solar panels collecting energy from the sun and storing it in batteries so that you can use it whenever you’d like. However, you can’t simply connect your solar panels directly to your batteries and expect them to charge. To get…

What Battery Cable Size Should I Use?

One upgrade RVers and boaters often make is to their battery systems. Whether you’re adding an additional battery or a whole new solar power system, choosing the correct battery cable size for your system is critical. Let’s jump in and talk about why it’s so important to select the right…

What Is A BMS (Battery Management System)?

Lithium-ion batteries have a lot of advantages over their lead-acid counterparts. They’re lighter, more efficient, charge faster, and have a longer lifespan. However, they’re susceptible to conditions that can damage the battery pack. Tapping into all of this potential requires lithium-ion batteries to be more complex and include components to…

Is It Dangerous to Mix Battery Sizes? 

When you’re building a battery bank for your mobile or off-grid application, it can be tempting to mix and match different battery sizes. Simply put, the answer is NO. For the longer explanation on why this is a very bad idea, keep reading. Mixing Battery Sizes: What Happens? You cannot…