EnginStar Portable Power Station 300W 296Wh Battery Bank with 110V Pure Sine Wave AC Outlet for Outdoors Camping Hunting and Emergency, 80000mAh Backup Battery Power Supply for CPAP

Key Specifications

Product Dimensions
‎7"L x 4"W x 6"H
Item Weight
‎4 Pounds
Voltage
‎110 Volts
Wattage
‎155 Watt-hours
Included Components
‎AC adapter, Charging Cable
Ignition System Type
electric

Reviewed by 1281 people this week!

★★★★
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EnginStar
4.3
1281 reviews
Buy at Amazon
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EnginStar Portable Power Station 300W 296Wh Battery Bank with 110V Pure Sine Wave AC Outlet for Outdoors Camping Hunting and Emergency, 80000mAh Backup Battery Power Supply for CPAP

The EnginStar Portable Power Station 80000 mAh is a compact, battery-powered unit designed for mobile power needs: outdoor trips, camping, travel, or emergency backup. According to its specifications, it provides up to 296 Wh of energy (80,000 mAh at 3.7 V) and offers multiple output ports including AC (pure sine wave), DC, USB, USB-C, and even a 12V car-style/cigarette lighter port — making it versatile for charging or powering phones, laptops, small appliances, lights, or other devices.

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2-Year Warranty
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Key Features

PORTABLE BUT POWERFUL: EnginStar Portable Power Station with ETL Certification, and the portable size of 9 x 5.5 x 7.5 inches, weights only 6.5 pounds, but armed with 296wh capacity and 300W AC output, EnginStar portable power station can provide enough juice to charge your phones, laptop, camera, cpap, drone, etc. Designed with 8 output ports can charge several devices at the same time, which make it a perfect emergency battery, outdoor and camping backup battery
110V PURE SINE WAVE & MULTIPORT: Built with two 110V pure sine wave AC outlets to make sure the solar generator (solar panel not included) works quieter, more efficient and more stable, which can protect your sensitive devices from damage such as laptop. 2 Regulated DC outputs (12V/24V) can provide a stable power output for DC appliances such as mini-fridge or car vacuum cleaner. Fast charger USB (5V/3.1A Max) and USB-C (18W)
SUPERIOR PROTECTION SYSTEM: EnginStar camping power station with a advanced battery management system of voltage control and temperature control, the multiple safe-charging design can protect the battery bank from the damage of short circuit, overcharging and overload, to make sure you use it efficiently and safely. 100% original high quality lithium ion batteries support more than 1000 times of charge cycle
3 CHARGING WAYS POWER SUPPLY: 1) The solar power generator can be charged with any compatible 12-25V solar panel (panel not included), built-in controller speeds up the battery recharge rate. 2) The portable power station with ac outlet can be charged via being plugged into wall outlet. 3) The portable ac battery bank can be charged from 12V socket of the car. At a maximum charging speed of 65W, it can be full charged in 7 hours
Package Contain and Battery Maintain: 1*EnginStar Rechargeable Electrical Power Station, 1*User Manual, 1*Home Charger, 1*car charger cable, 12 months limited service time(from the date of purchase); Recommend fully charge it every 2-3 months to keep the power station in good work condition, recharge in time before drain all the power

The EnginStar Portable Power Station 80000 mAh is a compact, battery-powered unit designed for mobile power needs: outdoor trips, camping, travel, or emergency backup. According to its specifications, it provides up to 296 Wh of energy (80,000 mAh at 3.7 V) and offers multiple output ports including AC (pure sine wave), DC, USB, USB-C, and even a 12V car-style/cigarette lighter port — making it versatile for charging or powering phones, laptops, small appliances, lights, or other devices.

Available Colors

300W Black
150W-Green
150W-Orange
+ more

Key Considerations

1

Battery capacity (Wh / mAh) — The unit claims 80,000 mAh (≈ 296 Wh), which defines how much total energy you can draw before recharge is needed.

2

Output power (W) and ports — It provides 300W continuous AC output (500W surge), plus DC, USB, and USB-C ports.

3

Versatility / port variety — Having multiple output types — AC, DC, USB, USB-C, car-style port — increases flexibility for laptops, phones, small appliances, or devices needing 12 V.

4

Portability and size/weight — The unit is relatively compact and light (approx. 6.5 lb / ~2.9 kg), which matters if you plan to carry it for camping or travel.

5

Battery type, safety & management — It uses lithium-ion battery technology with built-in battery management (voltage and temperature protection, overcharge/overload/short-circuit protection).

6

Realistic use case & limitations — Because of its 300W output and 296 Wh capacity, it’s more suited to small to medium-power devices, not large appliances or heavy loads. Overloading beyond rated capacity or continuous heavy use could strain the unit. Also, run time depends on actual device power draw.

1

The 296 Wh capacity (80,000 mAh) gives a rough idea of total energy available. For small devices — phones, tablets, laptops — this could mean many charges. But if you plan to run small appliances (fans, mini-fridge, lights), you must check their power draw and ensure they don’t exceed the 300W continuous / 500W peak limit. Overload may result in shutdown or damage.

These factors represent the most critical aspects that will impact your satisfaction with this product.

Customer Reviews

Perfect for Camping
2025-12-02T00:23:41.497Z

Works great and easy to use. Took it camping and ran small movie projector for several hours, multiple phone charges and blew up the air mattresses and still didn’t go through the entire battery life.

U
Nicole G
Exceeds expectations
2025-12-02T00:23:53.393Z

Took a gamble on this as we were going off grid camping and needed something to power my Airsense 10 cpap. From reviews it was recommended to turn off humidifier, which I did.

U
Jeffrey C Whitbeck

Frequently Asked Questions

Final Verdict

The EnginStar 80000 mAh Portable Power Station is a decent entry-level power station / high-capacity power bank — compact, versatile, and useful for travel, camping, small electronics charging, or emergency backup. Its 296 Wh capacity, 300W AC output, and multiple output ports make it suitable for laptops, phones, lights, small appliances, and 12 V devices. The built-in safety and battery management also lend reliability and peace of mind.