Best Indoor Generators 2021

Indoor generators have a lot of benefits over conventional gas-powered generators. They can also be called a Portable Battery Power Station, as the generator stores electricity in one or more batteries and then converts the direct current battery power into alternating current (AC) power using an inverter.

This enables us to make use of the battery power plant indoors: There are no sound and no emission of harmful gasses from the engine — things that occur in conventional generators.

Indoor generators have become a common substitute for conventional gas generators, which can be noisy, expensive to use, and unsuitable for indoor use.  For a generator to be considered safe for indoor use, it must be fume-free; smoke-free; and fuel-free.

This makes them well-suited for powering sleep appliances like a CPAP machine. Indoor generators can also be called a solar generator as well because they run on clean, renewable energy, and are safe for indoor use.

Top Indoor Generators – Our Top Picks

Jackery Portable Power Station Explorer 500

Jackery Portable Power Station Explorer 240, 240Wh Backup Lithium Battery, 110V/200W Pure Sine Wave AC Outlet, Solar Generator (Solar Panel Not Included) for Outdoors Camping Travel Hunting Emergency
  • Included in the "Best Portable Power Station for use in the outdoors" by Digital Trends.
  • MULTIFUNCTIONAL OUTPUTS: Jackery Explorer 240 is equipped with a 240 watt-hour (16.8Ah, 14.4V) lithium-ion battery pack. It features 1* AC outlet (110V 200W 400W Peak), 2* USB-A ports and 1* DC car port to power many equipments such as phone, laptop, light, fan, mini cooler and so on with pure sine wave inverter.
  • ENTRY-LEVEL EXPLORER 240 FOR OUTDOOR SCENES: Jackery Portable power station with solid handle, easy to carry and easy to operate wherever you go. A solid portable power can power your iPhone, laptop and camping light up, when you enjoying weekend camping or working from home.
  • GREEN SOLAR GENERATOR:Jackery Explorer 240 with built-in MPPT controller that can get the maximum recharging efficiency can easily get recharged with the efficient solar panel, Solar Saga 60W (sold separately) to provide eco-friendly clean power.There are other flexible recharging ways with wall outlet, car outlet and generator.
  • WHAT YOU GET: You will receive 1* Jackery Entry-level Explorer 240 (240Wh Portable Power Station), 1*AC adapter, 1* car charger cable, 1* user guide,2 year customer service.For a better customer experience, we will optimize the product from time to time.

The Jackery Explorer 500 is a compact, long-lasting generator suitable for both outdoor and indoor residential applications. It’s small enough to fit inside motor homes and caravans, but powerful enough to power a small mixer, pellet smoker, projector, and the motor-home lighting and fans.

This portable generator features a rechargeable battery that can be charged via a solar panel or a power outlet. It also has three USB ports, so you can charge your mobile phone or other devices that have a USB port.

Features and specifications:

  • Dimensions: 11.84 x 7.59 x 9.20 inches
  • Weight: 13.2 pounds
  • Voltage: 110 volts
  • Wattage: 500 watts
  • DC outputs: 1 (12V, 10A), 2 (12V, 7A, 6.5 x 4.4 x 1.4 mm)
  • Battery capacity: 518Wh (24Ah, 21.6V)
  • USB outputs (3): 5V, 2.4A (each)
  • Power source: AC, Carport, solar panel

This small generator for homes or camping cannot support appliances that require more than 500 watts, including hair dryers, coffee makers, microwaves, and heaters. However, it’s an excellent emergency power supply for medical devices, such as CPAP machines, and has a long-life battery that can recharge a mobile phone up to 53 times.

The Jackery Explorer 500 has an in-built pure sine wave Inverter that protects devices, such as laptops from overvoltage by distributing power evenly. This generator is not supplied with a rechargeable solar panel or cable adaptor, although it’s recommended as an environmentally friendly substitute for recharging.


  • Lightweight and easily portable at only 13 lbs.
  • The LCD screen makes operation easy
  • Environmentally friendly device
  • Supplied with a two-year manufacturer’s warranty


  • The power output is not as strong as other portable generators
  • It’s time consuming using the solar panel to charge
  • The battery tends to discharge faster in cooler weather

FlashFish G300 Portable Power Station

300W Solar Generator, FlashFish 60000mAh Portable Power Station Camping Potable Generator, CPAP Battery Recharged by Solar Panel/Wall Outlet/Car, 110V AC Out/DC 12V /QC USB Ports for CPAP Camp Travel
  • 222Wh Back-up Power Supply: Wide applications make it suitable for lots of devices; 110V AC outlets can charge your CPAP machine, tablet, laptop, TV, fan, Christmas lights etc; 2 * 12V DC Ports can be used for car vacuum, car refrigerator, car air fan and car charger etc; 2* QC3.0 USB and 1 * 2.4A USB ports can charge your phones, drones, iPad, GPS, mp3, camera, etc.
  • Cool Features: The silver case is metal and the black ends are plastic, more durable than other soalr generators.With 300W continuous power, 350W peak power, 60000mAh battery capacity and pure sine wave, this power generator can charge your devices more stably;5.6lb light weight makes it perfectly fit in your backpack. Key Product Features.
  • Recharge Solar Generator: The battery pack can be recharged from the sun with a solar panel (NOT INCLUDED); can be fully charged by being plugged into the wall outlet; and it can also be charged by plugging into your car 12V socket (car charger included).KINDLY NOTE THAT THE POWER STATION CAN NOT BE CHARGE AND USE AT THE SAME TIME.
  • Safety Warranty: Built-in multi safety protections like short-circuit protection, low-voltage protection, overheat protection, lock-on protection, over-voltage protection and over-current protection. THE LABEL INDICATED ON THE ITEM SHOWS 20Ah (20000mAh), PLEASE KINDLY NOTE THAT THIS IS NOT THE TOTAL CAPACITY. THE 300W SOLAR GENERATOR BUILDS INTO 3 LITHIUM BATTERIES, EACH ONE IS 20000mAh, SO THE TOTAL CAPACITY OF FLASHFISH G300 IS 60000mAh.
  • Enjoy Outdoor Activities: Our generator has an easy-to-carry handle, convenient for camping, fishing, travelling, other outdoor activities and emergency usage. Eliminate your worry about no electricity in your devices and power outage at home.

This generator delivers a high amount of energy that is similar to conventional petrol generators, but without excessive noise, exhaust gas, maintenance, and weight. FF G300 has more outputs (3x USB ports, 2x DC outputs, and 2x 110 AC outputs) and higher power.

The unit has an output of 300W, which you can use to power your drones, fans, tablets, televisions, laptops, car appliances, and even drills. It can satisfy all of your electrical requirements when traveling, camping, and at home.

Features and specifications:

  • Dimensions: 9.8 x 3.35 x 5.12 inch
  • Weight: 5.6lb
  • Voltage: 110 volts
  • Wattage: 300W rated power, 350W surge power
  • DC output: (2)12V
  • Battery capacity: 6000mAh (222Wh)
  • USB outputs: (2 QC3.0), (1) 5V/2.4A

FF G300 also has an LCD screen that shows the amount of power remaining, AC output, DC output, discharge status, and charge quantity. You can visually check the status of the battery and track when the battery needs to be recharged. And the battery can be recharged in three modes: power (wall sockets), solar panel, and car lighter adapter.

FF G300 is also supplied with a sturdy handle, and is lighter and weighs only 5.6lbs. It’s very easy to store in the car if you need to move around with it or place it on any table surface in the house if you‘re staying at home.


  • An in-built cooling fan for heat dissipation during operation at higher power
  • Seven outlets
  • Three charging modes
  • It comes with a 12-month warranty


  • the 50W solar panel is sold separately
  • Lower peak power

Rockpals 500W

ROCKPALS 500W Portable Power Station, 540Wh Lithium Battery Solar Generator Backup Power Supply with 110V AC Outlet, 2 DC Port, Car Port, Type C, QC 3.0, Emergency Light for Camping Home CPAP
  • UPGRADE ROCKPALS PORTABLE POWER STATION: Comparing to most similar power stations, Rockpals RP500W has upgraded the AC output to 500W continuous (1000W Peak); 2*DC outport (12V/48W max); Car Port (12V/96W max); built-in 2* USB (5V 2.1A, 10Wmax), 1*Quick Charge 3.0 usb and 1* Type C (18W max). Power phone, pad, tablets, GPS, laptop, walkie-talkie, Gopro, camera, drone, festivals bulbs and cpap machine under 500W for AC port
  • HIGHEST CAPACITY LITHIUM POWER PACK: 540WH(10.8V/50Ah) lithium batteries and weights 12.13lb. Powerful enough to charge smartphones (2000mah) about 58 times, laptops (56wh) about 7-8 times, mini car refrigerator (75W) about 5-6 hours, mini projector (60W) about 6-7 hours or other small power appliances. This solar generator is also very handy and good use for your RV, camping or hurricane emergency life power outage etc
  • EASILY THREE WAY RECHARGEABLE: This solar generator can be recharged by ROCKPALS 100W solar panel (Sold separately) about 6-7 hours in full sun; This battery pack can be fully charged from an wall outlet about 6-7 hours (charging cable included); The camping battery power supply can be fully charged by 12V car charger (charging cable included) about 6-7 hours
  • EFFIENCIENT DISPLAY AND ULTRA BRIGHT EMERGENCY LIGHT: The one power station in its class featuring with an LCD display that shows battery operating status timely (include AC output power/load, battery capacity/percent, over temperature, battery failure alarm); It is powerful with bright emergency light good for outdoor illumination or emergency
  • SAFETY AND WARRANTY: Pure sine wave inverter ensures safety powering senstitive devices like laptop without damage and reduces audible and electrical noise; Battery management system (BMS) enables short circuit protection, voltage control, temperature control and more advance safeguards; ✤We back to worry-free 18-month warranty and 4-6 days fast delivery✤

It’s an amazing choice with a lithium battery of 150000mAh @ 10.8V/540Wh, for all your off-grid and emergency power requirements. It also has a practical and elegant design so you can easily take it with you wherever you go.

Features and specifications:

  • Dimensions: 10.24 x 6.7 x 6.28 inches
  • Weight: 12.13lbs
  • Voltage: 120 V
  • Wattage: 500W rated power, 1000W surge power
  • DC Output: (2) 12V/48W, 12V/96W
  • Battery capacity: 540Wh
  • USB outputs: (2) 5V 2.1 A, (1) QC 3.0 ports
  • Power source: battery operated

The 540Wh lithium battery solar generator supplies a pure sine wave inverter with 500W. The peak value could be 1000 watts. This way, the power station could easily support most of your AC household appliances. Apart from many other charging options, it has two alternating current sockets.

Also, the portable Rockpals 500W power station has two 12V DC sockets with a maximum of 48 watts and a 12V carport with 96 watts. It also has two 5V 2.1A USB ports and a 3.0 quick-charging port. Above all, it’s equipped with a bi-directional 18W type C socket.

The power station also has several other advanced features. Firstly, it integrates an efficient display and an ultra-bright LED light. System data and battery status can be easily read on the display. In the meantime, the emergency LED light bar would give you enough light in the open air.


  • Easy to operate
  • Lightweight
  • The large output power of 500 watts
  • Suitable for CPAP


  • Slow charging time

AIMTOM 300-Watt

AIMTOM 300-Watt Portable Power Station - 280Wh Battery Powered Generator Alternative with 12V, 24V, AC and USB Outputs - Solar Rechargeable Lithium Backup Power - for Camping Outdoors RV Emergency
  • ▲ POWER ALL YOUR OUTDOOR ADVENTURES: A reliable, powerful and portable power station for your upcoming camping, hunting or fishing trips. No maintenance. No gas. No mess. No fuss.
  • ▲ GIGANTIC POWER SUPPLY FOR ALL YOUR NEEDS: This 300W portable power station packs a massive 75,000mAh 280Wh lithium battery that will re-charge drones, digital cameras, tablets and personal medical devices with ease.
  • ▲ CHARGE ALL YOUR DEVICES WITH SAFETY: Features an 110V/300W AC port, four USB ports(two are Quick Charge), three 12V outputs, one 24V output and one 12V car port. Simultaneously charge up to 10 devices without any fear of over-current, over-voltage or over-temperature.
  • ▲ RECHARGED ANYWHERE ANYTIME: You can recharge your AIMTOM power station using a wall outlet, DC power from a 12V car socket or charge it using AIMTOM 60W solar panels(sold separately).
  • ▲ ENGINEERED FOR ULTIMATE PORTABILITY: Lightweight, compact in size, only 7.5" long and weighing just 7.3 lbs, being off-grid has never been so easy. Now you can live, work and play. Anywhere. Anytime.

The 300-watt indoor portable generator is among the best indoor generators and is strong enough to charge mobile devices and power small devices. It’s lightweight and easy to transport. You can also charge up to 10 devices at a time.

Features and Specifications:

  • Dimensions: 7.5 x 5.5 x 5.9 inch
  • Weight: 7.3lbs
  • Voltage: 110 volts
  • Wattage: 300W rated power, 600W surge power
  • DC output: 12V, 24V
  • Battery capacity: 75000mAh (280Wh)
  • USB outputs: (2) QC, (3) 12V, (1) 24V, (1) 12V

It can power your CPAP machine for about ten hours, making it perfect for a power outage. The generator generates 300 watts of pure sine wave power. This means that your electronics receive a steady current flow during charging or operation.

There’s also a cooling fan to prevent overheating during use. You can also charge it from a wall socket, car power outlet, or an optional solar panel. The LED panel shows the battery status, so you can quickly see how much power you have left.

Additionally, the portable power station AIMTOM SPS-300 has numerous integrated connections. It comes with four UBS ports. This enables the users to recharge multiple drone batteries, smartphones, and gadgets within a relative downtime. Also, this portable power station is lightweight making it an easy choice for passionate adventurers.


  • Can power CPAP
  • You can charge up to 10 devices at the same time.
  • Pure sine wave energy
  • Emergency flashlight


  • The battery life is somewhat short

Suaoki Portable Power Station

SUAOKI Portable Power Station, 150Wh Camping Generator Lithium Power Supply with Dual 110V AC Outlet, 4 DC Ports, 4 USB Ports, LED Flashlights for Road Trip Camping Travel Emergency Backup
  • [BE COMPACT, BE EFFICIENT]: SUAOKI S270 is not only the most compact power station in the market, but also features as many output ports as possible, think of it, size of two coffee mugs hold 150wh capacity and 10 various outlet ports, how convenient will be when you carry this 2.90 lbs weight portable generator for outdoor activites or camping, 2 hideable handles make it even more portable. If this is your first time to using a power station, this would be you best choice for the price
  • [PLUG-AND-PLAY, QUIET]: SUAOKI S270 lithium backup battery pack equipped with 150Wh capacity (3.7V 40500mAh/11.1V 13500mAh), 3*USB ports(5V 2.1A), 1*QC3.0 USB port (18W max), 4*DC ports (12V 15A 180W max), 1*2 prong and 1*3 prong output socket (100W running, 150W peak). Power phone, pad, tablets, GPS, laptop, walkie-talkie, Gopro, camera, drone, festivals bulbs and camping explore devices under 100W, enjoy off the grid life, travel, hunting, fishing, vanlife, cave exploration
  • [3 RECHARGE METHODS]: SUAOKI S270 emergency battery supply provides three recharging methods: 1) it takes about 7-8 hours to be fully recharged by AC 110v wall socket, ; 2) by using SUAOKI 60W or 100W solar panel kit (sold separately, recommended), this solar generator can be recharged under direct sun light, the bulid-in MPPT solar charge controller enables quick and smart charge; 3) it also can be recharged through 12V/24V car cigarette socket. (3 types of charging cable is included)
  • [SAFE, RELIABLE]: Here we bring you this advanced portable generator that passed UL Certification which means absolutely safe and reliable. Battery management system (BMS) enables voltage, temperature control and more advanced safeguards, no harmful to your digital devices. Built-in LED flashlights have two models of light for blackout or emergency case such as hurricane supplies (strobe and normal-lit, bright enough to see 50 feet away); indicator lights show the residual battery capacity
  • [WARRANTY]: SUAOKI brand seller offers 7*24 friendly customer service, 30 days money back guarantee, 24 months warranty, life time support. What you get: SUAOKI S270 portable power station, 3 types of mentioned charging cable (AC plug, car cigarette plug, solar panel cable), DC to car cigarette female socket, multilingual user guide, service card

Suaoki 270 is ideal for power supply solutions for both outdoor and indoor. Especially if the weight of a generator is important to you.

However, due to its petite body, it comes with a limited energy capacity of 100W (peak 150W).  Unlike some high power models, the Suaoki 270 can be your choice if you only need it to power low electrical devices, such as your smartphone and laptop.

Features and specifications:

  • Dimensions: 7.3 x 4.3 x 4.7 inches
  • Weight: 2.9lbs
  • Voltage: 110V
  • Wattage: 100W rated power, 150W surge power
  • DC output: (4) 12V 15A
  • Battery capacity: 150Wh
  • USB outputs: (3) 5V 2.1A (1) QC3.0
  • Power source: solar-powered, battery-operated

Battery recharging offers three options: The first is a 110V AC wall outlet that lasts 7-8 hours; the second is a solar panel kit that you must purchase separately and can be charged under the sun; and the third is a 12V/24V car lighter outlet.

It’s a safe and reliable generator that has passed the UL certification, which makes it safe and reliable. Its battery management system provides temperature control, voltage, and many other advanced protections that are not harmful to your digital devices.

Its in-built LED flashlights are available in two different models for emergencies, such as a power failure due to heavy rain. They’re bright enough to flood more than 30 feet away and the indicator lights show you the remaining battery capacity.


  • Only weighs 2.9 pounds
  • In-built flashlight
  • Comfortable handle
  • Voltage and temperature control to protect your equipment
  • Fast charging


  • Not powerful enough to do anything substantial

Prymax Portable Power Station, 300w Solar Generator

PRYMAX Portable Power Station, 300W Solar Generator 2019 Updated 298Wh CPAP Backup Battery Pack with LED Flashlight,110V/300W Pure Sine Wave,AC Outlet, QC3.0 USB,for Outdoors Camping Travel Emergency
  • 🔥【298Wh Large Capacity Battery】Featuring with updated lithium battery cells, this power station is 298Wh powerful enough to charge a smartphone 40 times, laptops 7-8 times, 32" TVs 5+ hours, CPAP 4+ nights(using DC converter), mini-refrigerator 5+ hours, lights or other small appliances. Rated power is 300W while peak surge power is 600W.
  • 🔥【Super Multiple Ports】Prymax portable power bank is equipped with much richer ports than others, including 2* AC output ports(pure sine wave), 3* DC ports(12&24V output, 19V input), 2* 5V 3.1A USB ports, 1* 5V3A/9V2A type-c quick charge port, 1* 12/8A cigarette lighter port, fully meeting the needs of your travel charge.
  • 🔥【Run More Safely】2 pure sine wave AC outlets ensure a safer charge for your sensitive devices, better than modified sine wave and clean power like utility supplied electricity. Built-in Smart and Silent Cooling Fan will automatically turn on the fan when the unit is hotter to maintain the unit at the constant temperature without running the fan constantly. The low-noise and gas-free design make it more environmentally friendly.
  • 🔥【Compact and Portable】With an easy-carry handle, Prymax power station is a portable model in its class at just 6.5 lbs and 9*7.6*5.5 inch/23*19*14cm. Take it with you on-the-go and never worry about power shortage. Flashlight with SOS light design provides convenience for your outdoor emergency.
  • 🔥【What You Get】Package includes 1*298Wh portable power station, 1*AC power adapter, 1*user manual and 1*service card. Prymax always offers professional and friendly customer assistance so that you could better understand and use the product.

The portable power station PryMAX 300W provides security for your home or condominium or when traveling. This indoor portable generator is lightweight and designed with an easy to carry handle so you can take with you wherever you need it.

The PryMAX 300W updated lithium battery cells are powerful enough to recharge a mobile phone 40 times, a laptop seven to eight times, and power a 32 -inch television or mini-fridge for up to five hours. With its built-in intelligent and quiet fan for cooling, it’s a safe generator for living in an apartment or condominium. PryMAX also uses two pure sine wave sockets to safely charge small electronics and sensitive appliances.

Features and specifications:

  • Dimensions: 11.84 x 7.59 x 9.20 inches
  • Weight: 6.5 pounds
  • Voltage: 110V
  • Wattage: 300W rated power, 600W surge power
  • DC output: 12V/8A, 24V/3A
  • Battery capacity: 298Wh
  • USB outputs (3): 5V, 2.4A (each)
  • Power source: solar-powered, battery-powered

Although the PryMAX 300W generator can drive CPAP machines, for optimum performance, you’ll need to buy a separate DC converter to run this type of equipment. You’ll also need to purchase a solar panel separately to charge with solar energy, but you can also charge via a carport or by plugging into a power outlet at home. The package includes an indoor portable generator, AC adaptor, user manual, and PryMAX service card.

Safety is a major concern for PryMAX, and they designed the 300W generator with protection against over-power, over-charge, overvoltage, over-current, temperature, short circuit, electromagnetic field, and restoration.


  • In-built overvoltage and short circuit protection
  • Flashlight with SOS programming for use in emergencies and at night
  • LED screen makes operation easy
  • Comes with a two-year manufacturer’s warranty


  • A tendency to overheat during heavy use
  • Does not have quick charge connectors
  • Does not work for larger devices

Rockpals 300w Portable Power Station

ROCKPALS 300W Portable Power Station, 280Wh CPAP Backup Battery Pack UPS Power Supply 110V Pure Sine Wave AC Outlet, QC3.0 USB, 12V/24V DC, LED Flashlight for Camping, Home, Emergency
  • UPGRADED ROCKPALS 300-WATT PORTABLE POWER STATION: Comparing to most similar power stations, Rockpals 300W has upgraded the AC output to 300W continuous (600W surge max); 5* DC port (16A / 96W max); built-in 2* USB 2.1A and 2*Quick Charge 3.0 usb. Perfect emergency backup power for home/camping, charging up your tablets, iPhone, iPad, laptops, fans, TV, lights and CPAP machine (*Use Rockpals DC converter from your CPAP would get longer hours)
  • HIGHER CAPACITY CAMPING/HOME BACKUP BATTERY: 280WH(3.7V 75Ah/12V 18.7Ah) lithium batteries and weights 7.3lb. powerful enough to charge smartphones (2000mah) 26 times, laptops (56wh) 4-5 times, mini fridge(45W) about 6-18 hours. This battery powered generator is also very handy to be put on your RV, campervan or wherever you need power (Support Pass Through Charging)
  • EASILY THREE WAY RECHARGEABLE: 1. Rockpals portable power station can be recharged from the sun with any compatible 60W or 100W solar panel (SOLD SEPARATELY). 2) It can be fully charged in 6-7 hours by being plugged into the wall outlet. 3) This portable generator can be fully charged in 6-7 hours by car charger
  • PURE SINE WAVE OUTLET: Better than modified sine wave and clean power like utility supplied electricity. And it is a gas-free source of portable power supply, it runs quiet (The cooling fan on the side of generator will make a slight sound when working), no exhaust fumes.
  • WHAT YOU GET: Rockpals portable generator (280Wh Portable Generator), AC adapter, car charger cable, MC4 adapter, user guide, our worry-free 18-month warranty and friendly customer service.

The portable indoor generator, Rockpals 300W, is a small best indoor generator for homes or outdoor living with improved performance. This mobile power station supplies 300W to serve as a backup power source in case of power outages in apartments or condominiums, with the added advantage of a 600W surge voltage maximum.

Enjoy peace of mind with this indoor generator. The Rockpals 300W generator can run a lamp for about 70 hours, and a CPAP device for at least four nights. It can also charge smaller electronic devices such as mobile phones and laptops for multiple recharges.

Features and specifications:

  • Dimensions: 7.48 x 5.9 x 5.5 inches
  • Weight: 7.5 pounds
  • Voltage: 110V
  • Wattage: 300W
  • USB outputs (2) Quick Charge 3.0
  • Power source: AC, DC (solar)

While Rockpals made a little bit bigger 500W unit, the 300W unit is still powerful enough to help during a blackout or when camping outdoors. The environmentally friendly technology of Rockpals’ portable 300W power station allows it to be charged using a solar panel that is not included with the unit. However, if you’re already buying a Rockpals product, you can often get a discount for buying such a device separately.

Pure sine wave technology drives devices quietly without the need for gas or the emission of the harmful exhaust. It’s easily recharged by solar energy or by plugging it into an electrical outlet or car charger. This small generator for home or camping can be fully charged in six to seven hours and is ready to run your small devices or appliances.


  • Includes flashlights for night assistance
  • LED screen makes operation easy
  • Manufacturers of 18-month warranty


  • Solar charging takes longer than conventional sockets or carports
  • You must unplug the electronics when you’ve completed the charging process, otherwise, the device will consume power
  • Tendency to overheat

Advantages of Indoor Generators

A portable indoor generator is ideal emergency support in case you live in an apartment or have a small property, where an outdoor generator is out of the question.

Environmentally Friendly

The best indoor generator for home doesn’t require gas to operate and therefore has no significant carbon footprint. Lots of indoor generators are equipped to be charged by solar energy, which means that you don’t need to depend on a power outlet or car battery.

Compact Size

A small generator for living in a flat can easily be stored in a cupboard or showcase until it is needed. They don’t disturb already limited spaces. Thanks to their compact size, these generators can also be easily lifted and moved and taken on trips.

Indoor or Outdoor Living

Unlike conventional generators for outdoor use, which cannot be brought inside a building and often have to maintain a certain distance from a building, portable generators are designed for indoor use, but can also be used outdoors if required.

While some are more robustly built than others, indoor generators for homes can be used to power small devices or equipment when camping or traveling.

What to Look for When Buying an Indoor Generator

You buy an indoor generator and wonder what you should consider?  Whether you are interested in an emergency power source for your home or a lasting power station for your motorhome or van, there are some important things to consider when choosing an indoor generator.

Battery Capacity of the Indoor Generator

Above all, the battery capacity of an indoor generator will dictate its true potential. The more watt-hours (wH) a generator can hold, the more hours of power it can provide to your appliances and equipment.  Of course, battery capacity is directly related to the price and weight of an indoor generator, both of which will increase with larger units.  To calculate how much battery capacity you’ll need with your indoor generator, you should first consider everything you’re trying to run with it and from there, calculate your average load in watts.

Output Potential of an Indoor Generator

When analyzing the performance of an internal generator, two things must be taken into account: capacity and socket availability. Depending on what you want to run, you may need several AC (wall) plugs or USB connectors. If you want to power high-performance equipment such as power tools or an air conditioner, you’ll also need to ensure that your generator is designed to run continuously at high watts.

This means that you must take into account the size of the inverter in your indoor generator. These are sufficient in all sizes, but the larger the inverter, the larger devices you can operate. It’s best to go with at least a 500 Watt inverter to ensure you can operate most standard household appliances.

Charging Capabilities for Indoor Generator

Lastly, it’s important to understand the complete charging capabilities of your indoor generator. Can the unit be easily plugged into an electric outlet? What about a car? What about solar panels? Also, how long does it take to fully charge the device?  If you need a continuous indoor power supply in the event of a power failure, you should ensure that your generator can be recharged quickly and efficiently.

Frequently Asked Questions

Here are some frequently asked questions about indoor generators.

Are indoor generators safe to use?

Unlike a large outdoor generator, an indoor portable generator uses batteries to keep small devices and electronics running during a blackout or camping trip. They don’t release dangerous gases and can be used inside. Although these small generators are often equipped with cooling fans, their monitoring is crucial to ensure that they do not overheat indoors.

Which is the best indoor generator?

Different generators can meet different needs. To ensure the security of yourself and your family, you should look for an indoor generator for homes that has overvoltage protection and can cool itself inside. If you want to charge more than one device at a time, look for different types of sockets and USB connector.

What devices can an indoor portable generator charge?

All generators on this list can run devices that operate at 300W – 500W and provides some overcharge protection. With an indoor generator for homes, you can safely charge mobile phones, laptops, smaller televisions and lamps, mini-fridges, and CPAP devices.

How do you charge an indoor portable generator?

You can charge these portable power devices from a wall socket or carport. You can also charge many of these units by buying and using a small, portable solar panel.

Can portable generators be used while charging?

Be sure to look through the specific FAQs of the manufacturer to see if your generator can charge other appliances during the charging process. Normally, the alternating current connectors cannot be used while the generator is being charged, but the USB connectors remain functional.

Which batteries are used to power an indoor generator for homes?

Most devices available in the market today utilize lithium-ion batteries.


Owning a small generator for the home and personal use does not replace the amount of electricity that an outdoor generator or full power can offer. However, they can help reduce stress by keeping small devices and electronics working during blackouts. Some models even have flashlights with SOS programming for emergency use.

The purchase of an indoor portable generator is a relatively low-cost investment that provides a battery-powered supply of power when required. Nevertheless, it’s compact enough to be placed in a cabinet or a small space. This article reviews some of the best indoor generators to offer you a better guide to check out before buying your generator.