If you are already thinking about buying the best pure sine wave inverter for your vehicle, you definitely need to understand the difference between a modified and pure sine wave device.
Although the modified sine wave inverter works well under any circumstances, it may not be very useful in some situations. Electronics that use AC motors such as refrigerators, compressors, and microwave ovens generally work more efficiently with a sine wave inverter.
The sine wave inverter has one very important task. It has to convert DC power into usable AC power. Based on this, it takes a continuous, direct current and converts it into a pure sine wave that fluctuates smoothly and steadily above and below zero volts. This AC method is clean enough to power sensitive electronics that require a constant input signal to function properly.
When is a pure sine wave inverter necessary?
If you still decide to buy an inverter, it’s time to understand why you need it. Pure sine wave inverters are vital for those devices that are sensitive to various kinds of interference. These devices include compressors, electric motors of all kinds, pumps, and many others. In fact, it is important to understand that they only work with a “pure sine wave” as it has always been more stable than a modified sine wave.
What size pure sine inverter should I buy?
There is a rule of thumb for choosing the right inverter. The inverter power must be twice the total power of all simultaneously connected devices.
The size of the inverter depends on the watts or amps that you want to run with it. Most often, you need to calculate the power consumption, which is often indicated on the device or tool or in a separate manual.
Let’s take a look at a specific example. Let’s say, with the help of an inverter, you want to start a laptop, a table lamp, and a speaker. To keep all devices energized, you would minimally need a 500 W inverter. If you decide to connect something else, you will have to set priorities, and this is not always convenient. This is why you should consider buying a more powerful model.
You need to determine how much power your tool or a combination of them that you would use at the same time require to start up. It is called a starting load and means the number of watts needed to turn on your device. Also, there is a continuous running requirement called the continuous load. It determines the number of watts needed for the appliance’s continuous work.
Pure Sine Wave Inverters Comparison Table
|Continuous Power||More Power Options||AC outlers||USB||Remote Controller||Connection|
|AIMS PWRI30012Sbest 300 W||300W/12V||180/12V, 600-1000W/12V, 1500-2000W/12V||1||1||no||direct/cigarette lighter||Review|
|Giandel PS-1200JCRbest 1000 W||1200W/12V||no||2||1||yes||direct||Review|
|Renogybest 2000 W||2000W/12V||700W/12V, 1000W/12V, 3000W/12V||2||1||yes||direct||Review|
|Giandel PS-3000QBRbest 3000 W||3000W/12V||3000W/24V||4||2||yes||direct||Review|
Best Pure Sine Wave Power Inverter Reviews
AIMS PWRI30012S – best 300 watt
This is a great pure sine wave inverter designed specifically for all the needs of drivers and passengers. This particular specification has 300W max continuous power and a pleasant design in nice colors.
In addition, the device has several power options for your convenience: 180/12V, 600-1000W/12V, and 1500-2000W/12V. The model has a USB port, one socket, and LED indicators. Plus, built-in outputs up to 2.5 amps. Unfortunately, the disadvantages include the lack of remote control.
Applications are also more than enough: charging a phone, laptop, powering speakers, and small TVs. In any case, even the most reliable inverter often overheats when charging a large number of devices at the same time, keep this in mind.
- Continuous Power: 300W/12VV
- More Power Options: 180/12V, 600-1000W/12V, 1500-2000W/12V
- AC outlers: 1
- USB: 1
- Remote Controller: no
- Connection: direct/cigarette lighter/
Giandel PS-1200JCR – best 1000 watt
Speaking of Giandel PS-1200JCR, one cannot fail to mention that, according to many estimates, this inverter is considered the best pure sine wave inverter on the market. Let’s figure out why and what is so special about it.
The manufacturer offers us continuous 1200W/12V combined with 2400W peak power. Unfortunately, the manufacturer does not offer other options with other indicators of cotton wool, so we are content with one single version. There are built-in 2 AC outlets and 1 USB port onboard. Moreover, the device supports remote control, which is very convenient if you take this inverter on a trip or to a picnic.
In addition, it is equipped with a Multi-Protections function that minimizes the chance of Over voltage, Low voltage, Overload, Short circuit, Overheat. This model also has built-in fuse and polarity reverse protection.
- Continuous Power: 1200W/12V
- More Power Options: no
- AC outlers: 2
- USB: 1
- Remote Controller: yes
- Connection: direct/cigarette direct/
Renogy – best 2000 watt
If you pay attention to more solid devices, I advise you to definitely consider the best 2000 watt pure sine wave inverter – Renogy. The manufacturer offers several other power variations, for example, 700W/12V, 1000W/12V, 3000W/12V. I think this set will not leave anyone indifferent.
As usual, Renogy has two built-in AC outlets and 1 USB port. The presence of the remote control also adds convenience, which greatly simplifies the work with the device. But here’s a big drawback, as for me, is the lack of an LED display to monitor the status of the inverter and the amount of charge. On the other hand, it boasts an energy-saving mode and an automatic generator start option. Consider that this device is difficult to combine with others due to the fact that it breaks down quickly due to a lack of variability.
- Continuous Power: 2000W/12V
- More Power Options: 700W/12V, 1000W/12V, 3000W/12V
- AC outlers: 2
- USB: 1
- Remote Controller: yes
- Connection: direct/cigarette direct/
Giandel PS-3000QBR – best 3000 watt
Let’s move on to the “big toys”. These are the Giandel PS-3000QBR – one of the best pure sine wave inverters for RV. In this device, Continuous Power is pleased with the size of 3000W/12V, which is more than enough for a large number of needs. Moreover, there is also an extended version 3000W/24V.
With the connectivity aspect on one of the best pure sine wave inverters, everything is also more than fine: onboard, there are as many as four built-in AC outlets and also two 2.4A USB ports for charging devices that automatically detect your gadgets to charge them fastest up to 2.4Amps. The presence of the remote control is also a huge plus since it greatly simplifies the work with it. Moreover, there is a built-in LED display for correct tracking of the amount of charge, system alerts, etc. As you already understand, such a large device could hardly be connected to a cigarette lighter, so it only supports the direct connection.
- Continuous Power: 3000W/12V
- More Power Options: 3000W/24V
- AC outlers: 4
- USB: 2
- Remote Controller: yes
- Connection: direct/cigarette direct/
Advantages of pure sine wave inverter
The sine wave inverter is guaranteed to deliver power that is as good as pure AC. If you want to receive electricity of high quality and without interruption, consider buying a sine wave inverter.
Many devices we are used to are just the same designed to operate on the рure AC network directly from power plants. It is for this reason that Pure Sine inverters are ideal. Their energy is clean and therefore “green” and prevents pollution of the environment.
А pure sine wave inverter has the ability to generate inductive loads for appliances such as microwave ovens. With this function, the devices work much faster. It helps tremendously to conserve excess energy. It is also important to understand that a pure sine wave inverter motor also runs smoother and quieter.
Extends the life span of devices
Note that devices receive a certain number of output waves. For example, after using a sine wave inverter, your devices will heat up less, and therefore they will work incredibly efficiently. What’s more, the pure sine wave inverter also protects your computers and laptops from crashes and power surges.
A pure sine wave inverter can also help you reduce noise from your devices. Let’s figure it out: let’s say the operation of your device makes an annoying noise. In this case, the inverter may well become an alternative power source. The noise reduction process is due to the generation of a pure sine wave in the inverter, which gives more power to the equipment.
Work with a wide range of equipment
The sine wave inverter can work and connect to any type of equipment, whatever you want. Thanks to the reliable energy flow, the pure sine wave inverter will not damage gadgets and household appliances. As described above, using such an inverter will also improve the performance and efficiency of the devices and equipment you use.
But there is also an important nuance that needs to be taken into account. Several devices are designed to work with sine waves. These include microwaves and variable-speed motors. The sine wave flow will provide the full power required for the correct operation of the instrument. This rule also applies to medical equipment that requires maximum accuracy.
In my opinion, sine wave inverters do not require careful maintenance and additional inspection. The only thing is to check if the battery is in good condition, and that’s it. Most devices, such as generators, require careful regular maintenance, while clean sine wave inverters are not worth worrying about.
Compact and lightweight
This point is obvious: рure sine wave inverters should never be compared with generators in the field of lightness and compactness because the inverter will definitely win. It is because of this wonderful advantage that it is convenient to take it with you to any place. If you are looking for a true sine wave inverter for your devices, do not look for anything other than this type of inverter.
Protection of your devices
The sine wave inverter is great because it’s safe. It perfectly protects devices from many dangers. Firstly, the PSW inverter has overvoltage protection. When the input voltage is higher than the voltage indicated on the device, the inverter will simply stop working and reboot. Secondly, all devices connected to the sine-wave inverter are protected against undervoltage. If the input voltage is less than 85% of the standard value, the inverter will stop working.
Thirdly, the inverter always has an overcurrent indication. A dedicated LED display will usually show you this information. When the current passing through the inverter exceeds the allowable value, the inverter will shut down immediately to prevent damage to the connected devices.
And the last point is to prevent damage due to high temperatures and overheating. When the sensors detect a high temperature near the fuse inside, it will automatically shut off.
Reduced signal interference
Signal interference is a huge problem that many have encountered. When you use a sine wave inverter, you will not encounter any signal interference problems, such as watching TV or listening to the radio. This inverter delivers flawlessly clean energy that minimizes signal interference.
Disadvantages of pure sine inverter
As for me, the most significant disadvantage of a sine wave inverter is its cost. On the market, these models have always been more expensive than others. There is definitely a reason for this: they use more sophisticated modern technology in the manufacturing process.
Another problem is comparatively low battery life. Pure sine wave inverters use DC power very efficiently. Without this, battery life may not be as long. The reason for the shorter battery life is that sine wave inverters are made up of sophisticated technologies that are integrated into its circuitry. In addition to this, pure sine wave inverters also include heavy and inefficient transformers, which will reduce battery runtime.
Using a pure sine inverter for emergency home backup power
There is an incredibly popular and simple option for using an inverter for emergency power in the house. For example, during a power outage in an emergency, you can often use a car battery and an extension cord that needs to be pulled into the house where you can then plug-in electrical appliances.
Use overcurrent protection device for inverter
Batteries usually provide high current, and in the event of a short circuit, they require over a thousand amperes. A short circuit is a complete nightmare: it damages devices, is dangerous to health, causes fires, and so on. It is on this basis that the inclusion of an overcurrent device is good short circuit protection.
This overload protection device looks like a fuse or circuit breaker that is installed between the inverter and the battery. This thing will work within a split second if a short circuit occurs.
If you decide to purchase such a device, it is essential to choose the right fuse or circuit breaker for both the inverter and the cables. For example, you need to understand that an excessive fuse can cause cables to exceed their current rating. This state of affairs, in turn, can lead to heating of the cables and then cause a fire and many other unpleasant troubles. The instructions often indicate the recommended fuse or circuit breaker size and cable size for the safe installation of this type of extension.
What type of battery should I use for a pure sine wave inverter?
Battery recommendations vary depending on the size of your inverter. For example, if we are talking about small inverters, then it is important to know that most car and marine batteries provide sufficient power for 30 to 60 minutes even with the engine off.
If you are using inverters with a capacity of 500 W or more, it is recommended to use deep-discharge batteries. Why them? They will provide over 300 full charge and discharge cycles. It is not recommended to use conventional car starting batteries. In such work, they wear out after about a dozen charge and discharge cycles.
If your inverter is going to work with appliances with a high continuous load for a long time, in no case should you power the inverter from the same battery that is used to power your car. If you have been using a car battery for a very long time, there is an unpleasant possibility that the battery voltage may not have the energy to start the car. In such cases, it is always worth having a spare deep-discharge battery. Just pre-install it next to the inverter when connected to the starter battery. Also, be sure to install a battery isolator between the batteries.
Safety warning of using a psw inverter
Inverters are, of course, very interesting and important, but more important are safety rules. So let’s study them carefully and remember them. First of all, it is worth remembering that you DO NOT connect small electrical appliances to the AC outlets of the inverter in order to directly charge their nickel-cadmium batteries. You should always use a charger, and it is always included.
Secondly, do not connect chargers for cordless power tools in any way. The point is in the terminals of the devices, very high voltage is usually concentrated on them.
Remember that fluorescent lamps do not always work correctly in conjunction with a modified sine wave inverter. For example, if you notice that your lamp looks too bright or does not light up, do not use the lamp with an inverter, this can cause serious problems.
Please note that some NiCd battery chargers may be damaged when connected to a modified sine wave inverter. Usually, two types of devices are damaged. The former are small, battery-powered appliances such as flashlights or toothbrushes. To the second, we include some chargers for battery packs. They are used in cordless hand tools like a drill. Usually, you should note that chargers for these tools have a warning label about the presence of dangerous voltage at the battery terminals. Thus, I have formulated a rule: a modified sine wave inverter cannot be used with these two aforementioned types of equipment.
It is no secret that misuse of a power inverter can result in damage, injury, or even death or fire. Now, I propose to clarify the general security measures and the installation procedure.
The inverter must be placed on a flat surface where there is no possibility of contamination with water, machine oil, all sorts of acids, etc. It is also worth avoiding places with high temperatures, such as under the hood of a car. A combination of burning vapors and sparks that the inverter can produce during a malfunction can cause an explosion or fire.
The inverter must always be dry. Do not expose it to rain or moisture. As everyone knows from physics lessons, water and liquids, in general, conduct electricity easily, which can lead to serious injury or death. Under no circumstances should the inverter be placed on or near air vents, radiators, or other heat sources. Obvious warning, however, DO NOT place the inverter in direct sunlight. The storage temperature of the inverter is indicated as an acceptable temperature of 50 ° to 80 ° F.
The place where you will install the inverter should be well ventilated since most inverters have a built-in cooling system. Maintain a few inches of clearance around the top and sides of the inverter during use.