ECPOWSKEY

ECPOWSKEY 300W Portable Power Station 270Wh Camping Lithum Battery Solar Generator with 2 AC Output USB-C PD 45W

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$119.00$1199.00

About this item

  • Multiple Output Ports: This portable solar power station features a total of 9 output ports, including two 300W AC outlets, one 45W USB-C PD port, and one 18W USB 3.0 port. It supports simultaneous operation of a broad spectrum of devices, including mini fans, car refrigerators, lighting systems, smartphones, tablets, televisions, laptops and more.NOTE:Type C port not support device voer 45W
  • Efficient Charging Flexibility: This power generator supports multiple ways to recharge for enhanced operational flexibility. It is compatible with 18V–26V/2A solar panels, making it ideal for maintaining power during outdoor camping. Additionally, it supports simultaneous charging via a USB-C PD 45W charger and a 19V/2A (38W) charger, enabling a rapid charge to 80% capacity within 3.5 hours.
  • Excellent Protection System: The ECPOWSKEY Camping Power Station is equipped with an advanced Battery Management System (BMS), which includes voltage control and temperature control. Comprehensive circuit protection safeguards against short circuits, overcharging, and overload conditions, ensuring efficiently and safely use. The unit utilizes premium lithium-ion batteries with a lifespan exceeding 1,000 charge cycles.
  • Super Strong Power: Engineered for portability and performance, the power generator features a compact form factor (8.3" x 4.3" x 5.1") and a lightweight construction (4.9 lbs), while delivering a substantial 270Wh capacity and 300W provides Modified Wave AC output. This optimized power-to-weight ratio makes it an excellent companion for camping and outdoor activities.
  • What you Get: The package includes 1 x Portable Power Station, 1 x Wall Charger Adapter, 1 x Cigarette Lighter Adapter, 1 x User Manual. Backed by a 1-year limited warranty. For optimal battery health, we recommend performing a full recharge every 2-3 weeks during storage and avoiding complete discharge before recharging.
$119.00
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Product details

BrandECPOWSKEY
Fuel TypeElectric
Power SourceBattery Powered
Output Wattage300
Special FeatureFoldable Handle, Lightweight, Portable, Short Circuit Protection, USB Port
Included Components300W Power station, AC charger, cigar socket, user manual
ColorRJ-C3
Product Dimensions8.3"L x 4.3"W x 5.1"H
Model NameC3
ManufacturerECPOWSKEY

Technical specifications

brandECPOWSKEY
fuel_typeElectric
power_sourceBattery Powered
output_wattage300
special_featureFoldable Handle, Lightweight, Portable, Short Circuit Protection, USB Port
included_components300W Power station, AC charger, cigar socket, user manual
colorRJ-C3
product_dimensions8.3"L x 4.3"W x 5.1"H
model_nameC3
manufacturerECPOWSKEY
part_numberRJ-C3
item_weight5.68 pounds
item_model_numberC3
batteries28 Lithium Ion batteries required. (included)
special_featuresFoldable Handle, Lightweight, Portable, Short Circuit Protection, USB Port
batteries_includedYes
batteries_requiredYes
battery_cell_typeLithium Ion
warranty_description1 year
best_sellers_rank#115,056 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #402 in Outdoor Generators
date_first_availableAugust 23, 2025

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Customer reviews

4.78 ratings
★★★★★

For the price, it’s an amazing power pack

Brian JonesDecember 31, 2025

This 300 W portable power supply has been an excellent purchase and has quickly become one of our most used pieces of gear. We take it camping regularly, and it has also been fantastic for Chiefs games. We run a small TV off of it with no issues at all, and when paired with a portable solar panel it keeps everything powered up for hours. It is reliable, easy to use, and performs exactly as advertised. One of the biggest advantages is how versatile it is. Whether we are outdoors, tailgating, or at home, it provides dependable power when we need it. During a power outage, it is incredibly reassuring to have on hand. We can easily charge phones, power small electronics, and plug in essential devices without worrying about finding an outlet or running extension cords. That peace of mind alone makes it worth owning. The size and portability are also a big plus. It is compact enough to carry easily, yet powerful enough to be genuinely useful. The controls are straightforward, the display is easy to read, and everything feels well built and solid. It has handled repeated use without any issues, which speaks to its overall quality. I was also pleasantly surprised by the value. For the price, this power supply delivers excellent performance and reliability. It feels like a much more expensive unit than what I paid for it. Overall, I have been extremely happy with this 300 W portable power supply. It is perfect for camping, tailgating, and emergency backup power at home. I would absolutely recommend it to anyone looking for a dependable, portable power solution at a great price. Read more

★★★★★

Feature filled backup power bank with plenty of power

Dan G.January 3, 2026

The media could not be loaded. This power station carries a good amount of charge for a camping weekend, allows you to charge your phones and other small electronic items without worrying about running out of power. The flashlight feature is great, it lights up the whole tent and provides a wide, bright illuminated area if you need to walk outside at night. It is also light enough to easily carry with the handle. I tested how it would work if we had a power outage and I wanted to keep my internet up, and it ran my cable router (13W draw) for 14 hours! Very nice. One word of warning - when I tried to pick it up at night to use it to go outside the tent, my hand hit the emergency button on the back. This immediately caused a loud alarm and flashing lights, waking everyone around me! I have added a short video to show you how this looks. From then on I kept the handle up and only picked it up by the handle - it is too easy to accidentally hit that button when you pick it up without the handle. Truthfully, I don't see a need for an emergency alarm. Maybe it's because I'm a big guy, but I think these are far more likely to be accidently set off than be used in an actual emergency. Anyway, overall this power bank works really well and is a good value for the money. Read more

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★★★★★

Great screen info and lightweight

Honest John H.December 28, 2025

It arrived with 60% charge, which is very good. My indoor window solar panel (200W) charged it up in one day or so quickly. (The second photo shows the DC input charging at 10 watts.) I used it to recharge an A/C leaf blower recharge unit battery in one evening, as well as any USB rechargeable device, such as the hand warmer shown with 11 watts out in the first photo. A plus and minus of this unit is that it is very light weight. The plus means that you can easily and conveniently take it anywhere with you, in the car or outdoors. For lithium or any batteries, in terms of total energy storage, a light weight also means less metal on the interior battery plates for charge storage and duration. It is a trade-off. I would not expect this unit to last long with heavy AC usage such as portable refrigerators or heaters, but that is normal and expected. I have previously combined the use of 3 or 4 units like this in sequence in the summer to run a DC freezer long enough to chill down a watermelon! Read more

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★★★☆☆

This is not pure sine wave

DerrickDecember 20, 2025

I was disappointed to find that this is not pure sine wave. My heating pad and electric blanket have electronic controls that only work with pure sine wave and they do not work with this unit. Besides it says modified sine wave in the instructions book. It’s fine for other things though. It did come up a little short on the test too. 190 watt hours. It should have been closer to 230 with the 85 percent efficiency. I tested it with a 60 watt load. Read more

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★★★★★

Compact workhorse!!

Jan lanskDecember 21, 2025

I tested this power station all weekend while working on crafting projects in the garage using light-duty power tools, and it performed extremely well. Even after several hours of use, the battery was still above 60%. It arrived with about a 60% charge out of the box and charged up to 100% quickly once plugged in. I always pay close attention to heat on first charge, and there were no overheating issues at all. The variety of output options is excellent and makes it very versatile. It’s compact and not overly heavy — roughly the size of a small lunchbox and around 5 pounds — which makes it easy to move around or pack with camping gear. We also have a small electric chainsaw that normally requires a long extension cord to reach behind our fence line. The first thing my husband mentioned was how useful this will be for extending our reach without dealing with cords. Very pleased with the performance and usability. Highly recommend. Read more

★★★★★

Reliable, Compact Power Backup

XxDecember 23, 2025

It’s the season for power outages, with one expected tonight and even on Christmas Eve, so I wanted a reliable backup for my small electronics. I tested this right out of the box on my phone and iPad, which are the main essentials in my house, and it worked very well. It arrived with a solid charge and powered my devices at the same rate as my Anker charging cord plugged into a home outlet. The build quality feels good, and it’s compact and lightweight enough to store on a closet shelf and grab when needed easily. The size is just right for home backup use without taking up unnecessary space. I don’t plan to use it for heavy-duty activities like camping or outdoor adventures, so I can’t speak to its long-term durability in those conditions. That said, for everyday emergency power and light use, it fits my needs perfectly. Read more

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