Frequently Asked Questions

Here are some of the most frequently asked questions about mobile power and renewable energy products and the systems that convert DC to AC power.

Inverter Questions Answered

Have an inverter question? Here is a list of the most common inverter questions that we get asked.   How long will my batteries last? Each time I run my inverter a high pitched alarm is sounding? This is the most often asked question regarding power inverters, and is...

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Select a Fuse and Fuse Holder For Your DC Product Installation

This is the second in a two part series of technical briefs on circuit protection. Part 1 showed how to choose the correct wire size for DC circuits. Part 2 will show how to correctly select a fuse and fuse holder for your DC electrical installation. Regulations...

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Choosing the Correct Cable Size for a DC Circuit

This is part 1 of a 2 part series.Choosing the right cable size for your DC electrical project is important, since a wire that is too small can overheat and possibly start a fire. The American Boat and Yacht Council (ABYC) publishes charts with valuable detail to help...

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What Size Battery Charger Should i Install?

Battery charger size is based on the overall battery capacity that you have as well as allowing for what loads you would normally run when the battery charger is operating. The key to any battery charger is the basic operation. When a charging source is operating, it...

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How Much Solar Do I Really Need?

This is a question we get asked every day. With most caravaners these days spending more time off the grid compared to being plugged in at a caravan park, solar becomes their primary charging source. Caravan manufactures today are generally installing a single 150w...

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Can I charge my lithium battery with a lead acid charger?

Can I charge my lithium battery with a lead acid charger? This is a question we get asked every day by the general public. Lithium batteries are not like lead acid and not all battery chargers are the same. A 12v lithium LiFePO4 battery fully charged to 100% will hold...

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What size Inverter can I use on my lithium battery?

This is a question we get asked all the time. The size of the inverter is really dictated by the loads that you want to run. Let’s say your largest load is a microwave. A typical microwave will draw between 900-1200w. With this load you would install a minimum of...

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Are Your Batteries Constantly Going Flat?

Are Your Batteries Constantly Going Flat? A large portion of DC power systems these days don’t come with any protection to stop the battery from being completely drained away when loads are running. Over discharging a battery can and will shorten its overall lifespan...

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Understanding Pure Sine Power Inverters

An inverter is a piece of equipment that converts DC battery power into AC 230v mains power. Inverters are available in varying wattage outputs ranging from 150w through to 5000w+. When inverters were first invented, they produced what is called a “Modified” sine wave...

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Flat v Angle Installation of Solar Panels

The positioning of solar panels determines the power output. The angle of the sun in relationship to the angle of the solar panel determines the maximum power density. The tilt angle has the biggest effect on the efficiency of the solar panel. When the angle of the...

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Lithium Battery Overview

Lithium Battery Overview 2016 Lithium Based batteries are quickly becoming a reasonable replacement for the 150 year old technology of Lead-Acid batteries. In applications where weight is a consideration, Lithium batteries are among the lightest options available. In...

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Lithium … It’s All The Rage

Lithium Batteries Are All The Rage ... But does your Caravan or RV really need a lightweight, super-efficient battery system? We get many people inquiring about lithium batteries for their caravans, motorhomes and boats, but the big question is do they really need to...

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Morningstar String Sizing Calculator

Morningstar String Sizing Calculator The Morningstar string sizing calculator is used to determine the number of PV modules you may use with any Morningstar controller while staying within the controller specs. Recently Morningstar has updated their string calculator...

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What is an inverter?

What is an inverter? Modern inverters have caused a quiet revolution in the way we live with independent power systems, by providing silent 240 volt AC electricity anytime, anywhere. So, just what is an inverter? An inverter transforms the DC electricity stored in...

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Voltage Problems? See Our Cable Size Chart.

Got voltage problems? Check your cable sizes. In an independent power system, you generally would find an inverter and battery charger system working to the common goal of providing power. What ties each of these together are the battery cables to supply the power to...

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MPPT vs PWM Solar Controllers

MPPT vs PWM Solar Controllers Which is the best solar controller for my system? MPPT or PWM? We have compiled a small amount of information that will hopefully help you to understand better what the difference is, and why you should choose an MPPT or a PWM type Solar...

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Economical System Sizing

Economical System Sizing Our recommendations when it comes to system sizing is this: Sit down and list everything that you would ever want to run from your power inverter. Once this is done, look for any appliance with a power rating above 2000watts and strike these...

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Battery Systems

Battery Systems Good advise for battery systems. Do not discharge starting batteries below around 90% state of charge. Starting batteries are not designed to sustain DC loads for any length of time (Look how quickly car batteries go flat if a light is left on). Do not...

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Appliance & Load Questions:

Appliance & Load Questions: Appliance & load questions that are frequently asked at Enerdrive. Do I need a pure sine wave inverter to run a television? In short, No. By using a modified sine wave inverter you will find that lines will appear across the screen. The...

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