Buying guide · 10 min read · Updated October 2, 2026

6 Best 300 Watt Portable Power Stations in 2026: A Practical RV Guide

Six 300W portable power stations compared on real Wh, weight, outlets, warranty and cost per Wh for RV lights, fans and CPAP, from $114 to $190.

By Bowen HigginsRV Editor at RV Gear Lab6 products comparedSpec-sheet researched

A 300 watt portable power station is the size you can carry from the tow vehicle with one hand, and in an RV it earns its place as a quiet backup for the small stuff: a CPAP, a laptop, a fan, phone and tablet charging, a few lights. The number on the box is the inverter rating, not the battery. Every pick here lists 300W as its rated AC output with a 600W surge, but the batteries behind that number range from 192Wh to 296Wh, which is the difference between a few hours and most of a night.

We compared six units priced from $114 to $190 on the things that decide whether one is actually useful in a camper: stored watt-hours, listed weight, how many AC outlets and USB-C ports you get, cycle life, warranty and cost per watt-hour. None of them has a 30-amp TT-30 outlet or can run a microwave, roof air conditioner or an electric kettle, and we say plainly where a listing leaves a number out. If your loads climb past 300 watts, the 500 watt guide is the next step up.

RV Gear Lab field notes

The Rig Fit Check

Start with the job: ALLPOWERS VOLIX P300 300W Portable Power Station, 256Wh leads this shortlist for a CPAP, laptop and router backup with a UPS. Use that fit as a reference point, then compare the alternatives against your own space and workload.
Specs that separate the picks: The first details to compare are 256Wh LiFePO4, 300W, 192Wh LiFePO4, 300W. Confirm the exact model and included components before ordering.
Trade-off to plan for: Only one AC outlet, so a second mains device needs a strip

Before you buy

What Matters Before You Choose a 300 Watt Portable Power Station

Key buying criteria so you get the right fit the first time.

01
Rated output versus surge
The 300W figure is the continuous AC output, while the 600W number is a short surge that helps a motor start but cannot be held. A fridge compressor or a heater can trip the overload even if the label says 600W. Look for the words rated, continuous or running next to the number, and treat peak as a one-second allowance.
02
Stored watt-hours
Watt-hours decide how long you can run a load, so a 192Wh unit and a 296Wh unit with the same 300W rating are very different tools. A 50W CPAP on 296Wh runs roughly 5 hours after inverter losses, as a rough estimate. Check the Wh figure in the title or bullets and ignore mAh numbers, which depend on an unstated voltage.
03
One-person liftability
The listed weights here run from 5 to 7.87 pounds, so all are light enough for one person, but the 7.87 pound units are about 1.5 pounds heavier than the 6.4 pound ALLWEI. In a camper where you carry the unit between a cabinet and the bed, handle shape matters as much as weight. Check the dimensions and handle, and treat a missing weight, as with the EnginStar, as a reason to ask before buying.
04
AC outlets and USB-C wattage
A single AC outlet means one mains device, so a fan and a charger need a power strip, while two outlets avoid it. USB-C PD ports at 60W or 100W charge a laptop without a brick, but an 18W port will not. Read the port list in the listing, because the headline often says only 300W.
05
Battery chemistry and cycle life
LiFePO4 cells are rated for thousands of cycles, while the lithium-ion packs here are rated far lower. A station cycled once a week lasts decades on 4,000 cycles but can wear out on 1,000. Look for the cycle number and the end-of-life capacity, and note when the listing does not state them.
06
Warranty and recharge speed
Warranties here range from 12 months to six years, and recharge from 2 hours to 7 hours on AC. A short warranty on a $133 unit is not a deal-breaker, but a 7-hour wall charge matters when you have a short window to refill before a trip. Compare the written warranty and the AC input wattage, since slow charging is usually a low-wattage adapter.

Our standards

Why You Can Trust RV Gear Lab

At RV Gear Lab, we compare products based on rig fit and power or hookup compatibility, verified specifications, usability, setup requirements, weight, durability, and real-world trade-offs. We do not rank products purely on marketing claims or commission rates.

We have not personally tested every product listed. Where hands-on testing is not available, recommendations are based on verified manufacturer specifications, product documentation, use-case fit, and comparative research.

How we review RV gear →

Detailed reviews

The 6 best 300 watt portable power stations, explained

Best Overall · 1 of 6

ALLPOWERS VOLIX P300 300W Portable Power Station, 256Wh

256Wh LiFePO4, 300W
100W USB-C, UPS under 20ms
7.87 lb, 6-year warranty

Check price on Amazon

Best for: A CPAP, laptop and router backup with a UPS

Our take

Pick this if you want a single CPAP, laptop and phone setup that you can plug into a wall socket while it quietly acts as a small UPS.

Why it made the shortlist

The ALLPOWERS VOLIX P300 pairs a 256Wh LiFePO4 battery with a 300W pure sine wave AC output (600W surge) and weighs 7.87 pounds. Its listing publishes more than most in this class: a 100W USB-C PD port, two USB-A ports, a 12V car socket, 0 to 100 percent AC charging in about 2 hours, up to 110W of MPPT solar input, a UPS switchover under 20 milliseconds and a rating of over 4,000 cycles.

At $129 it is $20 cheaper than the ALLWEI 300W for the same 256Wh, which works out to about $0.50 per watt-hour against $0.58. In return you get the fastest recharge claim here and the longest warranty, six years against the ALLWEI's five.

What works

Six-year warranty, the longest of these six
Full AC recharge in about 2 hours
Under 20ms UPS switchover for routers and PCs

Watch out for

Only one AC outlet, so a second mains device needs a strip
1.5 pounds heavier than the ALLWEI for identical capacity

Check price on Amazon

Best Light Carry · 2 of 6

ALLWEI Portable Power Station 300W, 256Wh LiFePO4

256Wh LiFePO4, 300W
6.4 lb, 60W USB-C
3,000 cycles, 5-year warranty

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Best for: Daily carry and moving between rooms or campsites

Our take

Choose it if you move the station between bed, couch and picnic table every day and weight matters more than the last $20.

Why it made the shortlist

The ALLWEI 300W holds 256Wh in LiFePO4 cells rated for 3,000 charge cycles, delivers 300W continuous and 600W peak through one pure sine wave outlet, and weighs 6.4 pounds at 9.25 by 5 by 6.81 inches. Output ports are one AC, a 60W USB-C PD, an 18W USB-A, two DC5521 and a 12V car socket, and it supports pass-through charging so you can run devices while it recharges.

Versus the yewpiny EM300, which is $0.99 more at $149.99 for 259Wh, the ALLWEI states its warranty (five years) and its recharge times: 3.5 to 4 hours on AC, 4 to 5 hours with a 100W panel, and 2 to 2.5 hours with AC and solar together.

The caveats are the single AC outlet and the slower wall recharge compared with the 2-hour claims from ALLPOWERS and DaranEner.

What works

Weighs 6.4 pounds, lighter than all but two picks
Five-year warranty and published recharge times
Pass-through charging while it powers your devices
Built-in MPPT controller for solar charging input

Watch out for

AC wall charge takes 3.5 to 4 hours
One AC outlet limits it to a single mains device

Check price on Amazon

Best Budget Pick · 3 of 6

DaranEner 300W Portable Power Station, 192Wh LiFePO4

192Wh LiFePO4, 300W
Two AC outlets, 5.73 lb
2-hour AC recharge claim

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Best for: Tight budgets and light loads like phones and lights

Our take

Buy it if the load is phones, a tablet, LED lights and a small fan, or as a second small unit for a tent or tow vehicle.

Why it made the shortlist

The DaranEner is the cheapest station here at $113.99 and the one with the smallest battery, 192Wh of LiFePO4 rated for 3,500 cycles. It still has two pure sine wave AC outlets at 300W with a 600W surge, a 60W USB-C PD, two 18W USB-A ports and a 120W DC port, weighs 5.73 pounds, and runs below 50 dB. Its listing says a full AC charge takes about 2 hours from a 100W wall input.

What works

Two AC outlets despite the small size
Rated for 3,500 cycles on LiFePO4 cells
Runs below 50 dB, quiet at a campsite

Watch out for

Smallest battery here, 64Wh below the 256Wh units
Listing itself says CPAP runtime is only 2 to 4 hours

The catch: The listing is blunt that it is not meant for rice cookers, hair dryers or mini-fridges above 300W.

Check price on Amazon

Most Ports Listed · 4 of 6

yewpiny EM300 300W Portable Power Station, 259Wh LiFePO4

259Wh LiFePO4, 300W
65W and 36W USB-C
7.17 lb, 2,000 plus cycles

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Best for: USB-C heavy charging for laptops and tablets

Our take

Pick it if you want two USB-C ports and a 65W laptop charge without an adapter, and you will mostly charge from DC.

Why it made the shortlist

The yewpiny EM300 stores 259Wh in a LiFePO4 pack rated for 2,000 or more cycles and lists 300W output with a 600W peak.

It costs $149.99, which is $0.99 more than the ALLWEI 300W and $20.99 above the ALLPOWERS P300 for 3Wh more capacity than either, so the extra money buys mostly ports, not energy. The ALLWEI and ALLPOWERS both do.

What works

Two USB-C ports, one at 65W PD
Most capacity in the LiFePO4 group at 259Wh
Fan runs only when the unit gets warm
Pass-through charging lets it run devices while recharging

Watch out for

Listing says both pure sine and corrected sine wave
No warranty length or UPS time published

The catch: It also gives less assurance: the same listing describes the AC output as both pure sine wave and corrected sine wave, and it does not state a warranty length or a UPS time.

Check price on Amazon

Most Watt-Hours per Dollar · 5 of 6

EnginStar 300W Portable Power Station, 296Wh Lithium Battery

296Wh lithium, 300W
Two AC, 1,000 cycles
Full AC charge in 7 hours

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Best for: Emergency kits that rarely cycle

Our take

The caveats are the 1,000-cycle rating, a 12-month warranty (shared with the Apowking) and the unpublished weight, which makes it a poor choice for daily cycling.

Why it made the shortlist

The EnginStar packs 296Wh into a 9 by 5.5 by 7.5 inch body, the largest battery here, with two 110V pure sine wave AC outlets, three USB outputs including an 18W USB-C, a 12V car port and two DC barrel ports at 12V and 24V. At $132.99 that is about $0.45 per watt-hour, the best ratio of the six. It uses a lithium battery rated for 1,000 cycles and states a 12-month warranty.

What works

Largest battery of the six at 296Wh stored
Two pure sine wave outlets for two devices
24V and 12V DC barrel ports for DC gear

Watch out for

Only 1,000 cycles rated, a quarter of the ALLPOWERS
AC recharge takes about 7 hours, no weight published

Check price on Amazon

Best Bundle With Panel · 6 of 6

Apowking 300W Portable Power Station with 40W Solar Panel

220Wh lithium-ion, 300W
40W solar panel included
5 lb, two AC outlets

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Best for: Backpack kits that want a panel in the box

Our take

Pick it if you want one box that goes into a daypack with a panel included and you value the 5 pound weight.

Why it made the shortlist

Its 220Wh lithium-ion pack feeds two pure sine wave AC outlets rated 300W with a 600W peak, two USB-C PD ports and three USB-A ports, and the listing describes the unit as having no fan noise. A built-in LED panel claims about 300 lumens for 30 plus hours.

What works

Includes a 40W solar panel with 10 DC connectors
Lightest of the six at 5 pounds
Two AC outlets and two USB-C PD ports
No-fan design, so it stays quiet indoors

Watch out for

Costs $60.98 more than the ALLPOWERS for 36Wh less
Cycle life not stated for the lithium-ion cells

The catch: The Apowking is the lightest pick at 5 pounds and the only one sold with a panel: a 40W monocrystalline solar panel with 10 DC connectors.

Check price on Amazon

Methodology

How We Built This Shortlist

Each pick was assessed across 5 criteria weighted for real-world use.

Rated AC output

We kept only listings whose rated AC output is 300W, and noted the surge number separately so a 600W peak is never confused with continuous power.

Real stored energy

We compared listed watt-hours from 192Wh to 296Wh and divided price by Wh, because the inverter rating says nothing about how long a CPAP or fan keeps running.

One-hand carry

We used the listed weight, from 5 to 7.87 pounds, plus size and handle mentions to judge whether one person can carry it in from the tow vehicle.

Outlets and USB-C

We counted AC outlets and the wattage of the best USB-C port, since one AC outlet versus two changes how you wire a camper bedside.

Battery life and warranty

We weighed the listed cycle rating and warranty length against price, and marked the picks where those numbers are missing.

Decision guide

Match a 300 Watt Portable Power Station to Your RV

By What You Plan to Run

A 300W station is limited by its battery long before it is limited by its inverter, so match the load to the pick.

Your situation	Recommended pick	Why
Laptop, router and phones as an office UPS	ALLPOWERS P300	100W USB-C and a UPS switchover under 20ms
Overnight CPAP at roughly 30 to 50W	EnginStar 296Wh	Largest battery here, 296Wh, for the longest night
Phones, lights and a camp fan	DaranEner 192Wh	Cheapest at $113.99, two AC outlets
Two mains devices at once, such as a fan and a charger	Apowking 40W Kit	Two AC outlets in the lightest 5 pound body
Daily moves between bed, couch and picnic table	ALLWEI 300W	6.4 pounds with a 5-year warranty
USB-C laptop plus tablet charging	yewpiny EM300	65W and 36W USB-C ports

As a rough estimate, divide the Wh by your load: 256Wh at a 50W CPAP gives roughly 5 hours before inverter losses.

By Budget

Budget	Recommended pick
Under $120	DaranEner 192Wh at $113.99
$120 to $135	ALLPOWERS P300 at $129 or EnginStar 296Wh at $132.99
$145 to $150	ALLWEI 300W at $149 or yewpiny EM300 at $149.99
$190 with a solar panel	Apowking 40W Kit at $189.98

LiFePO4 vs Lithium-Ion

LiFePO4

This chemistry is rated for thousands of cycles and tolerates heat better, which suits a station you cycle weekly. In this comparison it is used by the ALLPOWERS P300, ALLWEI 300W, DaranEner 192Wh and yewpiny EM300, with rated lives from 2,000 to over 4,000 cycles.

Lithium-ion

Usually lighter for the same energy and often cheaper per Wh, but with a shorter cycle life. The EnginStar 296Wh is rated for 1,000 cycles, and the Apowking 40W Kit does not state a number, so these two suit occasional use.

Most RV owners should default to LiFePO4 unless the station will mostly sit in a drawer between storms.

By How Fast You Need to Recharge

Charging need	Recommended pick
Full AC recharge in about 2 hours	ALLPOWERS P300 or DaranEner 192Wh
Solar-heavy use with a 100W panel	ALLWEI 300W (4 to 5 hours with 100W)
Overnight wall charging, speed does not matter	EnginStar 296Wh (about 7 hours)
Panel included, trickle top-ups from sun	Apowking 40W Kit

For Camper Bedside CPAP Use Specifically

Look for

A pure sine wave outlet, at least 200Wh of stored energy, and a quiet or fanless design. A 50W CPAP on 256Wh gives roughly 5 hours as an estimate, so heated humidifiers need more.

In this comparison

The EnginStar 296Wh stores the most, the ALLPOWERS P300 adds a UPS switchover, and the DaranEner 192Wh listing itself warns it covers only about 2 to 4 hours of CPAP.

When to Spend More

Spend more if

You cycle the station often or want the longest warranty; the ALLPOWERS P300 at $129 adds a six-year warranty and over 4,000 cycles, and the ALLWEI 300W at $149 gives a five-year warranty and 6.4 pounds.

Save if

It sits in a drawer for storms and trips; the DaranEner 192Wh at $113.99 or the EnginStar 296Wh at $132.99 cover phones and lights for less.

FAQ

Before You Bring One Home

What can a 300 watt portable power station run in an RV?

Phone and laptop charging, LED lights, a small fan, a router and a CPAP fit easily. A microwave, coffee maker, kettle or roof air conditioner draw well over 300 watts and will not run. Add up the running wattage on each device label and stay under 300W with the battery in mind.

Can I plug my RV's 30-amp shore cord into one of these?

No. None of these six has a TT-30 outlet, and 300W is far below what a 30-amp RV panel can draw. They are for plugging individual devices in, not for powering the whole camper. For a TT-30 connection you need a much larger station.

Is 256Wh better than 192Wh if the output is the same 300W?

Yes for runtime, because 256Wh is about 33 percent more energy for the same wattage. A 50W load runs roughly 5 hours on 256Wh against roughly 3.8 hours on 192Wh, as estimates. The extra storage matters more than the inverter rating at this size.

How should I charge it for the first time?

Charge it fully from the wall using the supplied adapter before first use, as the EnginStar listing advises. After that, solar or 12V car charging works well for top-ups, though a small panel adds only a trickle. Keep an eye on the maximum solar voltage, for example 12 to 25V for the EnginStar.

Is the ALLPOWERS P300 worth more than the DaranEner?

If you need 256Wh and a UPS switchover, yes: it is $15.01 more for 64Wh more storage, a 100W USB-C and a six-year warranty. If you only charge phones and run lights, the DaranEner at $113.99 is enough. Two AC outlets on the DaranEner is the main thing the ALLPOWERS lacks.

How do I store a 300 watt power station between trips?

Keep it dry and out of a hot car, and top it up every few months. The EnginStar listing recommends recharging every 3 to 6 months and storing at about 40 to 70 percent. LiFePO4 units tolerate heat better, but a closed camper in summer is still harsh on any battery.

Bottom line

The short version

Browse more 300 watt portable power stations on Amazon →

About the author

Bowen Higgins

RV Editor at RV Gear Lab

Bowen covers RV power, water systems, towing and leveling, upkeep and interior comfort, with a focus on matching gear to the rig, the hookups and the way you actually travel.

6 Best 300 Watt Portable Power Stations in 2026: A Practical RV Guide

Our top picks

The Rig Fit Check

What Matters Before You Choose a 300 Watt Portable Power Station

Rated output versus surge

Stored watt-hours

One-person liftability

AC outlets and USB-C wattage

Battery chemistry and cycle life

Warranty and recharge speed

Why You Can Trust RV Gear Lab

The 6 best 300 watt portable power stations, explained

How We Built This Shortlist

Rated AC output

Real stored energy

One-hand carry

Outlets and USB-C

Battery life and warranty

Match a 300 Watt Portable Power Station to Your RV

By What You Plan to Run

By Budget

LiFePO4 vs Lithium-Ion

By How Fast You Need to Recharge

For Camper Bedside CPAP Use Specifically

When to Spend More

Before You Bring One Home

What can a 300 watt portable power station run in an RV?

Can I plug my RV's 30-amp shore cord into one of these?

Is 256Wh better than 192Wh if the output is the same 300W?

How should I charge it for the first time?

Is the ALLPOWERS P300 worth more than the DaranEner?

How do I store a 300 watt power station between trips?

The short version

Bowen Higgins

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