Solair World

How to Choose a Portable Solar Generator?

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A solar generator emerges as a priceless asset during emergencies, offering a portable power source when needed.

For example, solar power has been instrumental in disaster relief efforts.

Besides, harnessing solar energy presents numerous advantages, like cutting down electricity bills and contributing to the earth’s preservation.

Ready to get a solar generator?

Excellent! This comprehensive buying guide aims to equip you with essential knowledge about choosing ga solar generators, ensuring you make a wise purchase.

Power Output and Capacity

The power yield of a solar generator is crucial when shopping.

Opt for a generator with sufficient power to cater to your needs, whether that entails powering minor appliances or operating larger equipment.

Generally, a higher wattage output translates to a longer time to power your devices.

You can typically find the wattage output in the product description.

Running Watts

The running watts, also known as rated watts, reflect the continuous power output of a generator.

To choose the right one, add up the wattage needs of all the devices you want to power simultaneously.

This information is typically listed on the devices.

Your generator should have a running wattage rating that exceeds the combined wattage of your devices to ensure it can handle the load.

Peak Power

The peak power output, also known as starting watts, is the higher level of power that a generator can supply for a short time to start devices with electric motors, like a mini fridge or a fan.

These devices need a burst of energy to start up before they operate at their normal, lower power requirement (running watts).

If you plan to power any devices with motors, check their starting wattage and ensure the generator’s peak power can handle this initial surge.

Solar Generator Sizes

Solar generators are rated by their battery capacity, which is usually listed in watt-hours (Wh).

This tells you how much energy the generator can store and supply.

For example, if you have a 150-watt refrigerator runs for 24 hours, it will use 3,600 watt-hours (Wh) per day. Then you would need a generator with more than 3,600 Wh capacity to run the refrigerator for a full day without recharging.

Choosing the right size of solar generator is essential. For small electronics or occasional use:

  • A generator with a capacity of 500 Wh to 1,000 Wh may suffice.

For regular use with multiple devices or a few appliances:

  • A medium-sized generator in the range of 1,000 Wh to 2,000 Wh could be appropriate.

For powering most of a household or for heavy-duty off-grid use:

  • You may need a large generator with a capacity of 3,000 Wh or more.

Recharge Time

Recharge time is a crucial factor to consider when selecting a solar generator because it determines how quickly the device can convert solar energy into usable power.

The faster a generator can recharge, the more reliable it is, ensuring that you have access to power when you need it, especially during consecutive days of use or in emergency situations.

Fast recharging is more convenient, especially if you need to power devices or appliances continuously or if you’re using the generator in a mobile setting, like camping or in an RV, where you may only have a short time to recharge before moving on.

Recharge time can also indicate the efficiency of the solar panels used with the generator.

More efficient panels can convert more solar energy into electricity, leading to a quicker recharge rate.


The lifespan of a solar generator determines how long the device will reliably function before needing a replacement or significant maintenance.

A longer lifespan means fewer replacements, which is cost-effective and less wasteful in terms of resources.

When you choose a solar generator with a long lifespan, you’re investing in prolonged energy security and more value for your money over time.


Solar generators are popular companions for camping or backpacking adventures.

If you envision using your generator on the move, ensure it’s compact and lightweight for easy transport.

The last thing you’d want is hauling a hefty generator in the wilderness.

Speaking of portability, don’t miss our guide on the top portable power stations if you’re planning to travel soon.

Battery Type and Capacity

Also, reflect on the type and capacity of the battery incorporated in your solar generator.

Various battery types are available, including sealed lead acid, lithium-ion, and nickel metal hydride, each differing in weight, size, and cost.

Choose what aligns with your energy requirements.


Solar generators typically feature multiple outlets and ports that allow you to power several devices at once.

These can include standard AC outlets for household appliances, USB and USB-C ports for charging personal electronics like phones and laptops, and car cigarette lighter ports for devices designed for vehicle use.

Having a variety of outlet types makes a solar generator more versatile, catering to different power needs.


Aim for generators constructed with robust materials like aluminum or steel for longevity.

Some come with protection against elements like dust and spills, extending their lifespan, though such features may only be necessary depending on the usage environment.

We ensured our selected solar generators excelled in durability.


The cost of a solar generator is largely determined by its kind and power capacity.

If you’re considering a portable generator, prices can start below $200 for basic models suitable for small devices and can exceed $500 for more advanced models with higher power output, reaching $1,000 or more for top-of-the-line units.

When it comes to backup solar generators for home use, the price range broadens.

Entry-level models may be around $1,000, but as the wattage and capacity increase, the price can climb into the several thousand dollars.

The more power and features you require, the higher the investment.

Battery Life

The battery inside the generator is another big factor.

They come in different types like lithium-ion or lead acid, and each type has its pros and cons in terms of weight, size, and cost.

Choose one that fits what you need in terms of energy.


Your solar generator should harbor crucial safety measures to guard against overcharging and short circuits, allowing worry-free usage.

We ensured all our listed picks adhered to safety standards.


Verify the compatibility of your devices with the solar generator.

Most generators offer various input ports for different electronics like phones and laptops.

Ensure your choice has all the necessary ports to avoid the need for additional adapters.


Some solar generators could be complex, demanding specialized skills for proper installation.

Review the installation prerequisites in the product description before buying.

This insight enables you to either hire a professional or undertake the installation yourself.