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How to choose the appropriate power inverter


There are many choices out there for power inverters . There are 12V power inverters, 24V power inverters, square wave inverter, modify sine inverters, pure sine inverters, and different variety of sizes and different power ratings. this article will guide you choose the right and best inverter for your needs.


First, you must make sure the voltage of your inverter matches your battery bank. That means if your battery is connected so they are 12V, you need a 12V inverter.


power surge [Maximum instantaneous output].

What do you plan to turn on? Do you want to run an electric kettle? Top electric stove? Electric appliance If so, the 2000 watt inverter will work. 2000 watts is as high as you want in a 12V battery bank, if not, you can draw too much power and produce too many obstacles on the cable and connection.

If you don’t plan to run consumers with heavy power, smaller inverters are a good way to go. A 1200 watt power inverter is capable to run most small appliances and even some microwaves. The reason some might want to go for a smaller inverter is that when an inverter is turned on, it has a constant no-load attraction. Each manufacturer must include their product description of how much power the inverter uses for constants. For example, a 1200 watt inverter uses 1.2 amps / hour, while a 2000 watt inverter the same company uses 1.7 amps / hour. 1.2ah x 24h = 29 amps / day. 1.7ah x 24h = 40.8 amp / day. You will be surprised how much power some devices and equipment use. Here are some home appliance labels that you can see.


With 12 and 24 volt inverters starting at 100 Watts or less, up to 6000 Watts plus, it’s important to choose the right size for your application. Today inverters are more than 90% efficient, which may look like numbers that will not affect your power usage, but consider a 1000 Watt inverter with full power and there is a waste of around 100 Watts – at 12 volts which is equivalent to more than 8 Amps! In a 100 amp hour battery, only wasted power can drain the battery up to 50% charge around 6 hours, so it’s not always the bigger case is better. Make a list of the equipment and devices you want to run, consider which ones might be run at the same time and calculate their total wattage. Other considerations must be taken for the extra power needed at start-up of some devices, especially those that have electric motors such as refrigerators or power tools.


Modified Sine Wave Inverter


  • Wide range, lots of choices
  • Cheap compared to PSW
  • Generally smaller than PSW


  • Not suitable for sensitive electronics
  • Make more heat from the PSW inverter
  • May not work with all equipment

The main strength of the modified Sine Wave (MSW) inverter is the relatively cheap price compared to the Pure Sine Wave model. For most purposes the MSW inverter will be appropriate, because it is ideal for most devices with the exception of sensitive electronics. Modifications to Sine Waves can cause some distortion on TV and computer screens and it is not recommended for constant use of battery-powered items such as laptops because eventually they can damage the battery – occasional use might be good.

Pure Sine Waves Inverter


  • Smooth and reliable power output
  • Able to empower any device in it
    the limit
  • Running more efficiently than MSW


  • Higher costs than MSW
  • Physically bigger and heavier than MSW

Pure Sine Wave (PSW) inverters are more expensive than other models and are generally larger because of the additional circuits and the sophisticated equipment they use. Although the price is more expensive, PSW inverters can be relied upon to produce good constant power and because of that they are trusted to use sensitive devices and medical devices.

Finally, it is important to remember that when using power from an inverter, you should not exceed the value of its power

What kind of electronic device requires a pure sine wave inverter?

Most electronic device or your home appliances will work well without a pure sine wave inverter , but it’s very good idea to think about this before buying.First, it is important to know the difference between a pure sine wave inverter and a modified sine wave inverter that can cause problems.

The two main issues faced are efficiency and unwanted interference from additional harmonics that are in the modified sine wave. That means pure sine wave inverters are good on two things: efficient power devices that use alternating current inputs without straightening them first, and turning on devices such as radios that can experience interference.

These are some useful question that will help you determine if your appliances will need a pure sine wave inverter or not. :

  • Does my device or appliances use a motor? if yes, pure sine wave inverter recommended
  • Is my device a robust medical device? if yes, pure sine wave inverter recommended
  • Does my appliances or electronic use a rectifier? if yes, it might be fine without pure sine wave inverter
  • Can my electronic or device be supported by a DC adapter? if yes, it might be fine without pure sine wave inverter

Can any inverter be used in solar systems?

Since the inverter converts DC power to AC, yes, any inverter can be used for solar systems, but it should be kept in mind that since the inverter must be constantly operating, it must be of an inverter that has high quality and efficiency. Good to use. Therefore, it is not recommended to use low-cost in-market inverters, which are mainly used for travel and camps and are made of low-quality inferior goods.

How to choose an inverter manufacturer?

With the application of various power plants, power inverters have been widely used. There are more and more Inverter photovoltaic manufacturers, and users must pay attention to them when before buying photovoltaic inverter products. Choose your own PV inverter to avoid future problems or failures.

For many inverter photovoltaic products now, this can achieve a good use effect when used. Some types of sun control machines, for example, some small factories are difficult to produce, so users at the time of purchase of choice, combined with their own situation to choose suitable photovoltaic inverter products.

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