Top 7 Cheapest Solar Generators – Most Bang For Your Buck Under $300

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Solar power is an excellent source of backup power supply.

As technology advances, the need for power is becoming more dynamic than ever. Solar energy does not only meet that need, but also offers several other benefits such as portability, lower costs, and eco-friendliness. 

For most users of solar generators, the important concerns when purchasing a solar generator are the cost and quality. If you’re new to solar systems, you might want to check the quality to cost ratio of the product you intend to buy. 

Solar energy is now a commonplace possession among many homeowners, hence the price for a good one should not be beyond reach. While the quality of the unit you get ultimately depends on the amount you’re willing to spend, it is necessary to always ensure that you get the best for your budget. 

In this review, we placed a little more focus on the price and affordability of a good solar power unit. We’ve provided an industry-standard review on the quality of seven (7) quality yet affordable solar generators.

We’ve also included essential features to look out for when purchasing the best solar generators. Of these features, the most important ones are battery capacity, weight, portability, mode of charging and charge rate, expandability, and durability. 

You’ll find that getting a solar generator goes beyond satisfying your immediate power needs. A very important question to ask is, “What is the life cycle of the generator?” This helps you understand the discharge rate of your battery after a full charge to recharge, and how long the product will optimally serve you. 

Another is the warranty. “What is the manufacturer’s level of confidence in the quality of the product?” and so on.

Depending on your specific power needs, you’ll find a suitable choice among the products reviewed. One more thing worth noting: these generators all have fantastic ratings on Amazon. So, you can hardly go wrong with any of them. See the table below for a quick view of the top seven cheapest solar generators from Amazon.

Quick View - Top 7 Cheapest Solar Generators

ModelJackery 240FlashFish 300WhRAVPower 252.7WhROCKPALS 300WAIMTOM SPS-155PRYMAX Power StationNusGear 155Wh
Jackery 240 solar generator front viewFlashFish solar generator front viewRAVPower 252.7Wh solar generator front view with caseRockpals 300W solar generator front viewAimtom solar generatorPryMAX 178Wh solar generatorNusGear 155Wh solar generator front view
Weight6.6 lbs (3 kg)5.6 lbs (2.6kg)7.84 lbs (3.55kg)7.31 lbs (3.32 kg)3.48 lbs3.9 lbs3.52 lbs (1.6kg)

Jackery 240

Jackery 240 solar generator front view

Key Features

Dimensions 5.19 x 9.05 x 7.67 inches
Weight 6.6 lbs (3 kg)    
Battery Capacity Lithium-ion Battery, 240Wh (14.4V, 16.8Ah) 67,000 mAh / 3.6V
Cell Chemistry Lithium-ion NMC
Charging AC Wall Outlet, 12V Car adapter, and Solar Panel
Battery Management System Over-voltage protection and short circuit protection  
AC Power Output 110V 60Hz, 200W, 400W max.
Shelf Life Charge every 3-6 Months
Life Cycle ≥500 cycles to 80%
Warranty 2-Year Jackery Warranty

 In The Box

  • 1 Jackery Explorer 240 Portable Power Station
  • 1 AC Adapter
  • Car charger cable
  • User guide


Jackery 240 also known as Jackery Explorer 240 is a portable power station designed for on-the-go power needs. Indoor or outdoor, regardless of where you need power, you can count on this compact and affordable unit.

In terms of battery, Jackery Explorer 240 has an inbuilt 240 watt-hour (16.8Ah, 14.4V) lithium-ion battery. The battery capacity of all solar generators is rated in watt-hour. 

It is 100% compatible with small appliances which will usually demand below 200W as well as other devices such as TVs and laptops. It is also capable of charging several devices at the same time. It is a pure sine wave inverter, meaning that it gives out only a clean and stable power supply like regular AC power supply. 

The Jackery Explorer 240 power station will automatically turn off in 6 hours when power is being drawn under 10W to ensure power saving. CPAP users can also rely on this power station to power their devices. But it is important to turn off or remove the heater/humidifier while powering the CPAP machine to get a longer charge from the power station. 

With Jackery 240 beside you, you will worry less about power outages for a few days.

It weighs just 3kg which makes it super portable. It is built for outdoor recreational activities, camping, and emergency power needs.

However, care must be taken to avoid exposing it to moisture and other elements as it is not waterproof. The Jackery power station features an AC outlet (110V 200W 400W Peak), 2 USB-A ports, and one 12V DC car port. It also features an LCD display screen. 

This gives you a clear picture of power use, the battery level, and helps you visualize the discharge rate. It is the only power station in this class. In essence, deciding how to distribute your power wisely and efficiently seems easier with this feature. The backlight feature also enables easy reading under the sun. 

When it comes to charging, Jackery 240 can be recharged via any of the following options.

  • 8 Hours via AC wall outlet
  • 8 Hours using a 12V Car Adapter
  • 10 Hours using optional 60W solar panel with full sun


  • Lightweight and easy to carry
  • LCD screen that shows battery life, charge, and discharge 
  •  It is absolutely quiet
  • No emissions or vibrations
  • Allows pass-through charging, i.e., you can charge your devices while still charging the unit.
  • Supports all ports and multiple charging


  • It is not water-resistant
  • Battery capacity is capped at 240Wh

Verdict: The Jackery 240W unit is an excellent backup power source and currently available for $ 249.99 on both Amazon and Jackery websites.

Similar: The Jackery 240 – Solar Charger for the Outdoors

FlashFish 300Wh

FlashFish solar generator front view

Key Features 

Dimensions 9.84in x 3.35in x 5.12 inches
Weight 5.6lb (2.6kg)
Battery Capacity Lithium-ion Battery, (222Wh,3.7V) 60,000mAh
Cell Chemistry Lithium-ion NMC
Charging AC Wall Outlet  12V Car adapter, and Solar Panel
Battery Management System Low and over-voltage, overheating, and over current protection; short circuit protection
AC Power Output 9V-12V / 10A 60Hz, 300W, 350W max.
Shelf Life Charge every 3-6 months
Life Cycle ≥500 cycles to 80%
Warranty 2-Year FlashFish warranty  

In The Box

  • FlashFish G300 Solar Portable Power Station
  • Power Adapter
  • Car Charger
  • Cigarette Lighter Adapter
  • User Manual


The FlashFish 300Wh solar generator, also known as FlashFish G300 portable power station, is another affordable and lightweight power source.

It has a battery capacity of 222Wh, 60000mAh and weighs only 5.6-lbs, so it’s a device you can take anywhere. Indoors or outdoors, you can rely on its capacity to provide prolonged power needs such as camping. 

The FlashFish 300W portable power station is packed with a powerful 60000mAh battery, making it suitable for lots of devices such as a CPAP machine, tablet, laptop, TV, fan, Christmas lights, phones, drones, and iPads. It is capable of powering any device that runs on 110V 

AC within 300 running watt and Peak of 350W, as well as any 12V DC devices within 168 watts in total.

The FlashFish G300’s obvious advantage over Jackery 240 is its lighter weight. However, its AC output port can only power devices with a power rating below 350 watts. The moment this is exceeded, the FlashFish 300W shuts down automatically. 

CPAP users can use the FlashFish 300W power station in different ways: 110V AC Plug or 12V DC Plug. The manufacturer also recommends that CPAP users use a DC converter when working with the FlashFish 300Wh power station or simply remove the Heater/Humidifier so it can last longer. 

This solar generator has built-in multi safety protections to guard against situations such as short-circuiting, low-voltage and over-voltage, and overheating. 

So, there’s no limit to how much fun you can have when camping, travelling, fishing or doing other outdoor activities. 

Recharging the unit is also as easy as it gets. There are three options as with the Jackery 240: 

  1. It can be recharged from the sun with a solar panel, though you will need to purchase a solar panel for this.
  2. By plugging into your car 12V socket using the 110V included car charging cable.
  3. It can also be recharged from an AC wall outlet, and it can also be charged.

The power station features 2 12V DC Ports which can be used for a car vacuum, car refrigerator, car air fan and car charger; 3.0 USB ports, two of which are powered by fast-charging QC3.0 technology. 

Finally, you can see the battery status, charge, and discharge rates on the built-in LED screen. The generator is currently sold on Amazon for $174.99. All these features make the FlashFish G300 a preferred solar power choice for the consumer.


  • It’s a lightweight device which makes it easy to carry around
  • LCD screen that shows battery life, charge, and discharge 
  • Relatively low and affordable price tag
  • USB ports with QC3.0 technology for fast charging 
  • It allows pass-through charging, i.e., you can charge your devices while still charging the unit.
  • Supports all ports and multiple charging 
  • With its metal case, it is more durable than other solar generators. 


  •  No car jump function
  • It is not water-resistant

Verdict: Buying the FlashFish 300wh power station is a great choice considering the feature pack it comes with and the extremely affordable price.

RAVPower 252.7Wh Solar Generator  

RAVPower 252.7Wh solar generator front view with case

Key Features

Dimensions 5.12 x 5.12 x 7.28 inches
Weight 7.84 pounds (3.55kg)  
Battery Capacity 70200mAh/252.7Wh
Cell Chemistry Lithium-ion NMC
Charging AC Wall Outlet, 12V Car adapter, and Solar Panel  
Battery Management System Low and over-voltage, overheating, and over current protection; short circuit protection
AC Power Output 110V/60Hz 300W Max. 250W rated capacity; 10600mAh, 20V 3A
PD Input 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A, PD60W Max
PD Output 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A, PD60W Max
Shelf Life Charge fully every 6 months
Warranty  I year warranty plus 18 more months after registering on the company’s official website

In The Box

  • 1 RAVPower portable powerhouse
  • 1 power adapter
  • 1 type-C to type-C charging cable (60cm / 23.6in)
  • A stylish carrying case
  • User Guide


The RAVPower portable power station is an ideal backup power generator for both home and recreational use. It has a powerful in-built sine wave inverter and two 110V AC outlets for delivering stable and clean electricity.

In its 7.84 pounds body is a colossal battery capacity of 252.7Wh/70200mAh. This assures users long hours of use during outages or when camping. This solar generator is particularly built to support small to medium power needs in the house such as LED bulbs, smartphones, laptops, TVs, etc.  

The RAVPower solar generator is fairly new on the market as it was first available on March 10, 2020. However, it comes with promising features and is ready to compete squarely with existing brands. 

When using one of the AC outlets, the unit delivers 250W only, and a total of 300W when both are in use. It supports CPAP and PD CPAP devices. It has an impressive 60W PD input & output outlet that supports PD devices.

With the RAVPower 252.7Wh solar generator, you can rest easy whenever there’s a blackout. Worries like food going bad in the fridge are totally eliminated.

There are multiple options for recharging the power station: AC wall outlet, 12-24V car charger, and using solar panels charger. Note that the recommended solar panels would have an output of 80W and above. Typically, the generator can be fully recharged in 4 hours 50 minutes through PD port and 6 hours via DC input. For most power stations, this is a very fair bargain.

Although there is no LED display screen, the battery status of the unit can still be monitored as the manufacturer has included five (5) LED indicators to display the battery level status. Users may need to read through the included manual for full details.

One special feature of this unit is its emergency modes of lighting which are solid on, SOS and flashing. This feature is particularly useful when camping in the woods or during an earthquake. 

The carrying case is another cool feature that comes as part of the included accessories. This bag provides for easy movement of the powerhouse and other essential stuff such as cables. The RAVPower 252.7Wh solar generator is currently available on Amazon for $242.99.


  • It allows pass-through charging
  • It is IP45 rated water-resistant.
  • It is lightweight and comes with a fitting carrying case


  • No LED screen
  • It is slightly expensive
  • It is relatively heavy.

Verdict: The RAVPower solar unit is a great buy except for the slightly high price and absence of LED display screen. 

Similar: Food Storage for Doomsday Preppers


Rockpals 300W solar generator front view

Key Features

Dimensions 7.48 x 5.9 x 5.5 inches
Weight 7.31 lbs (3.32 kg)
Battery Capacity Lithium-ion Battery, 280WH/75000mAH
Cell Chemistry 32 Lithium-ion batteries
Charging AC wall outlet, 12V car adapter, and solar panel (optional)
Battery Management System Short-circuiting, voltage control (over-voltage/under voltage), temperature control, over current, overload, and overcharge protection   
AC Power Output AC 110V±10%, 60Hz±1Hz, 300W, 600W Max, Optional Accessory 100W Solar Panel
Life Cycle ≥500 cycles to 80%
Warranty 24 months warranty

In The Box

  • Rockpals 280Wh Portable Generator
  • AC adapter
  • 1 DC cable (Pin 5.5 x 2.1 mm)
  • Car charger cable
  • MC4 adapter
  • User guide
  • Warranty


The Rockpals 300W portable power station is another lightweight device that offers 280Wh delivery from a 300W/75000Ah in-built battery. It weighs only 7.3lb and comes with an easy-carry handle for moving the power station around. 

The device is perfect for outdoor activities as well as indoor use. Due to the huge power output, you can easily power a lot of devices without stress. It produces a noiseless pure sine wave which protects your sensitive devices from damage.

When compared to similar power stations, Rockpals 300W features an upgraded AC output of 300W continuous (600W surge max) power generation. There are 5 DC ports, 2 USB ports, and an extra quick charge 3.0 USB port.

If what you need is an emergency backup power that will serve you well at home or outdoors, you won’t regret your purchase. Rockpals 300W generator is suitable for charging tablets, iPhones, laptops, fans, TV, lights, iPad, and CPAP machine.

Just like the other power stations, the Rockpals 300W has three dynamic ways for recharging.

  1. 6-7 hours via an AC wall outlet
  2. 6-7 hours using a 12V Car Adapter
  3. And 8-9 hours using a compatible solar panel, though this is an optional purchase

The unit also features an advanced battery management system to enhance the durability of the power station.

The power output, however, differs across different ports: the AC output port can charge devices less than 300W, the first DC output charges devices less than 96W, while the second DC output can charge devices less than 48W. Once the power on the device exceeds this, it automatically switches to protection mode. 

Another cool feature that will enhance the durability of the power station is its ability to shut down after 10 hours if it is not in use. The same happens when you charge a low watt device of less than 1W via the AC port. For the 24V DC, 12V DC, and 5V USB, it goes off when the low watt device is less than 1.68W, 1.2W, and 0.25W, respectively. 


  • Advanced power management system 
  • LED display for monitoring the battery status
  • Fast charging
  • High output
  • Automatic power use control
  • Multiple charge options


  • The cooling fan on the side of the generator makes a slight sound when the unit is working
  • It is slightly expensive

Verdict: At a price of $269.99, the Rockpals 300W is a worthy investment if you don’t mind the cost. You may also benefit from the manufacturer`s free shipping offer depending on where you are.

Similar: Rockpals 500 Review (In-Depth) – Features, Specs, and More


Aimtom solar generator

Key Features

Dimensions 7.67 x 6.73 x 3.54 inches
Weight 3.48 lbs
Battery Capacity Lithium-ion Battery, 155Wh 42000mAh
Cell Chemistry Lithium-ion NMC
Charging AC wall outlet, 12V car adapter, and solar panel (optional)
Battery Management System Overheating, short-circuiting, voltage control, over current, overload, and overcharge protection
AC Power Output AC100V~120V, 50Hz/60Hz, 100W Rated, 150W Max.
Life Cycle ≥500 cycles to 80%
Warranty One-year warranty  

In The Box

  • AIMTOM 155Wh portable power station
  • Cigarette lighter adapter (for 12V Output)
  • Wall outlet charging power adapter
  • 1 car charging adapter
  • User Manual


The AIMTOM portable power station is designed for portability and use anywhere you are. It is easy to recharge, easy to carry around, and easy to use.

With a battery capacity of 42000mAh, the AIMTOM solar power station delivers with 155Wh power capacity. This is relatively low when compared to most solar generators of similar features.

It is however ideal for powering all sorts of appliances such as TVs, laptops, fans, smartphones, and electric blankets as long as the power draw does not exceed 180 watts. 

It is an emergency power station design to cater for all small outdoor power needs. The AIMTOM portable power station is equipped with a single 110V/ 100W AC Outlet, three 12V DC, and 3 USB output units.

It is lightweight, easy to recharge, and easy to carry. The unit weighs just 3.48lbs and can even go in a backpack or preferably car trunk; a pointer to the fact that it is designed for maximum portability.

It does not produce noise, so rest assured that your loved ones or neighbors will not be disturbed by any buzzing or whizzing. It also comes packed with a pure sine wave power inverter which runs quietly.

Recharging is possible via compatible solar panels, car DC port, or AC wall outlets. It has a built-in MPPT charge controller system that automatically optimizes the charging process and maximizes power extraction from solar panels regardless of the weather. 

To top it all up, there’s also a perfect built-in battery management system (BMS) for protecting your device against overcurrent, overvoltage, and overheating while also ensuring your safety and that of your devices. This also serves to prolong the life of the battery. As you already know, the battery of any solar generator is core to its functionality. 

So, a unit that features an efficient BMS should make a great choice for any buyer. From a DC15V/2A source, it charges fully within 7-8 hours. The AIMTOM power station is currently sold at a relatively affordable price of $137.99. 


  • It has a very compact design
  • It is very portable
  • Allows pass-through charging
  • It is relatively affordable


  • No LED display
  • Lower wattage and relatively long charging hours

Verdict: Despite the reduced power output, this solar generator is packed with features that are well suited for its price. 

Similar: Top 5 Mistakes Newbies Make when Using Solar Panels

PRYMAX Portable Power Station

PryMAX 178Wh solar generator

Key Features

Dimensions 7.4 x 5.9 x 4.4 inches
Weight 3.9lbs
Battery Capacity Lithium-ion Battery, 178Wh
Cell Chemistry Lithium-ion NMC
Charging AC wall outlet, car adapter, and solar panel (optional)
Battery Management System Overheating, short-circuiting, voltage control, over current, overload, and overcharge protection
Optional Accessory 30-120 watt solar panel for recharging
AC Power Output 150W continuous, 200W max
Warranty  2 years warranty

In The Box

  • Prymax portable power station
  • AC power adapter
  • Car charger cable
  • User manual
  • Prymax service card


The PRYMAX portable power station is a 178Wh solar-powered generator. It can work as an emergency backup battery pack for both home and outdoor needs such as camping, road trips, and recreational activities.

It has an LED flashlight, delivers a maximum output of 200W from its pure sine wave AC outlet, and has two quick-charge 3.0 USB outlets for charging smartphones and other devices. 

It weighs only 3.9lbs, which means it can easily be taken to wherever a backup power supply is needed. The device can power PCs, laptops, fans, drones, smartphones, and LED bulbs. 

The generator does not use fuel; hence it is perfectly suitable for indoor use. It requires no maintenance aside from charging, therefore, there’s no need for extra spending after purchasing your power pack. 

The device has three USB outputs (two USB quick charge and one USB-C) and two 12V DC outputs. It features a surge and short circuit protection in the battery.

In addition, it has an LCD screen for visualizing the battery status, a powerful LED flashlight, and two lighting modes: normal white light and SOS mode for outdoor emergency situations. 

It is suitable for CPAP machines which can be powered by either using a 110V AC Plug or 12V DC Plug. However, for optimal output, it is recommended that CPAP users use an AC to DC converter to work with this power station and turn off or remove the heater/humidifier.

This solar generator may not have the ideal battery capacity to support a full eight hours of rest, so I recommend using a solar generator with at least 300Wh to be able to overcome this. I highly recommend checking the power intake of your CPAP machine and then calculating how long your desired solar generator would last with it.

Recharging the unit is easy. PRYMAX portable power stations can be recharged by any of the following means.

  • AC wall outlet, 7 hours
  • Car charger, 8 hours, and
  • Compatible solar panel: In 9 hours from a 30W-120W solar panel. Typically, the higher the sun, the faster the charge.

As expected from a solar generator that will stand the test of time, the PRYMAX features an in-built BMS to prevent damage to the system and your home at large. The unit is currently sold for $229.99 on Amazon.


  • It is compact and very portable
  • Includes an LED screen 
  • It runs silently and only delivers clean energy


  • There is no automatic power use control. 

Verdict: Although the PRYMAX does not offer a lot in terms of power output, it still satisfies both basic and some advanced power needs. It is relatively low priced which can account for some loss of function. 

NusGear 155Wh

NusGear 155Wh solar generator front view

Key Features

Dimensions 7.32 x 4.21 x 7.08 inches
Weight 1.6kg (3.52 pounds)
Battery Capacity 155Wh 14Ah/11.1V (equivalent 4200mAh 3.7V)
Cell Chemistry High-quality lithium-ion batteries
Charging AC wall outlet, car adapter, and solar panel (optional)
Battery Management System Overheating, short-circuiting, voltage control, over current, overload, and overcharge protection
AC Output 110/120/220/230/240V AC±10%
Output Frequency: 50/60Hz±10%    
Optional Accessory 30-120 watt solar panel for recharging
AC Power Output AC Continuous Output: 100W(150W Max)
Life Cycle > 500 Times
Warranty 2 years warranty

In The Box

  • NusGear 155Wh Portable power supply
  • A 15V/2A Power Adapter
  • 1 Car Charger
  • Cigarette lighter adapter
  • User Manual


The NusGear portable power station aptly features impressive gears that will make any buyers give it try. The generator is well-suited for camping and other outdoor events, including tidying up work on your laptop. 

You can stay off-grid for a reasonable amount of time without having to worry about power. It can fully recharge your phone up to 20 times, 3-4 times for your laptop, up to 4 hours support for CPAP machines, and about 40 hours for LED lights. 

It allows versatile charging with its multiple input ports. The generator has a truly compact built and weighs 3.52 lbs which means portability was well considered in its design. 

Charging can be done by:

  1. Wall AC outlet
  2. 12V cigarette lighter for 8-9 hours and 
  3. Built-in MPPT for recharging via a solar panel. Note that the solar panels (18-23V/35-40W) are sold separately.

It’s quiet and comes with an efficient battery management system (BMS) that enables voltage control, short circuit protection, overcurrent protection, overpower protection, temperature control and other safety features to ensure protection and durability of the product. 

The NusGear portable power station is endowed with quick charge technology for fast charging of your phones, an LED display screen for keeping an eye on the battery status, and it is completely green. No emissions, no fumes, no noise.

It delivers a DC output of 5 (9~12.5V/10A, 15A Max), so you can plugin directly and without hassles. This power station is currently selling at $131.99. 


  • An in-built LED display screen
  • It is super portable
  • Relatively affordable
  • Versatile Charging
  • Advanced battery management system


  • The power output is relatively low
  • Charge time is also longer compared to other similar units

Verdict: The NusGear 155Wh portable power station isn’t particularly a great powerhouse but it offers compensatory value for money spent. Besides, you can totally rely on it for common outdoor power needs.

Bottom Line

The products reviewed in this article are all fantastic solar generators under $300. Although, you may need to factor in your specific power needs and budget before settling for one model. In some cases, you may need to get extra gear like solar panels to harvest energy directly from the sun. In all, you can hardly go wrong by picking any of these units.

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Max Peters

Hi! I'm Max and I am passionate about off-grid solar technology and adventure! I'm using my knowledge of solar generators, solar panels, and everything in between to provide you with the best tools to keep you powered while off the grid. Read more about me here: About Max Peters."

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