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330W Portable Power Station, GrantMaya 288Wh 80000mAh Portable Generator Backup Battery with 110V Pure Sine Wave AC Outlet 60W PD QC3.0 USB Car Socket Flashlight for Camping CPAP Emergency Hurricane

$361.71 USD
$212.77 USD

Free Expedited Shipping

100% Hassle-Free Returns

100% Satisfaction Guaranteed

Secure Payments

Product description

  • 🌟LARGE CAPACITY BATTERY PACKS: HP300T 288Wh 80,000mAh high quality lithium batteries, pure sine wave AC outlet, power station, portable power supply, solar generator, home emergency backup power. It doesn’t only power music player, smartphones, tablets, camera, car refrigerator, car wash, car vacuum… but also can power projector, printer, GPS, drone, laptop, computer, CPAP machine, fan, TV, holiday lights…
  • 🌟MULTI-FUNCTION OUTPUTS: HP300T portable generator has high efficient and multi-function power outputs to meet different power requirements for family trips, outings, camping, or wherever you may need electricity. 【1】2* 110V/60Hz pure sine wave AC outlet; 【2】2* QC 3.0 USB Output (MAX 18W); 【3】1* 60W PD/type-C USB Input & Output 【4】1* 18W PD/type-C USB Output; 【5】1* 12V~16V (Max: 15A) Car Cigarette Lighter socket; 【6】1* 2W LED light with 3 modes( Strobe, Solid, SOS).
  • 🌟EASY CHARGED METHODS: You can charge the power station by 3 methods. [1]110V AC wall power socket to charge fully within 8 hours. [2]12V car cigarette lighter can fully charge around 8~9 hours. Or with a 60W PD charger (NOT included) plug in the 60W PD type-C socket to charge fully around 7 hours. [3] You can also use solar panel to charge the power station during the daytime anywhere. Suggested 60~150W (15V/3A) Solar Panel (Purchase separately), the charged time depends on the sunlight.
  • 🌟Safe & Stable Power Supply: We use the battery management system (BMS), short-circuit protection, over-current protection, over-voltage protection, low-voltage protection, over-load protection, over-temperature protection… to improve battery utilization and prolong battery life. And power station with AC pure sine wave inverter reduces noises in fans, lights, speakers, TVs, and other sensitive appliances. And you can check real time battery working status from LCD display.
  • 🌟Compact and Portable: HP300T power station is super slim size (8.26*3.54*8.26 inches) and lightweight (5.42 lbs). Flashlight with SOS light provides a convenience for your outdoor alert and safety needs. The portable power bank is not only for emergency backup power at home, but also for camping or wherever you need power when you are on the go. (Package List: 1* Portable Power Station, 1* AC Power Adapter, 1* Car Charger, 1*Carry bag, 1* Instruction Manual).

Product Description

GrantMaya HP300T 330W 288Wh 80,000mhA Portable AC power bank, Power Station can apply 60W PD, QC3.0 USB, Cigarette Lighter and 110V/120V AC power to your appliance and portable electronic, it's the ideal easy-to-move & use portable energy storage system supply solution to many activities at home, outdoor, and emergency. It makes your camping,tailgating and other mobile activities more comfortable. In an emergency, it can provide you with critical backup power.

Frequently Asked Question:

  • Q1: How to calculate how long would it power your device?
  • Re: Pls check the watt/voltage/current of your device. For reference, assuming the operating wattage of your device is 60W , working time will be about 288Wh*0.85/60W=4.1hrs. (Noted that the duration of our equipment is only based on laboratory data and the actual duration may be different from different devices.)
  • Q2: How to choose the Solar Panel (Purchase separately)?
  • Re: We suggest you can choose 60-200W solar panel (Optimum Operating Voltage is 18V), because of higher power, charging faster, charging speed is also relating to sun intensity.
  • Q3: How to charge ?
  • Re: 5 Ways---A. 110V AC wall power charger, B. Car cigarette lighter, C. Solar panel(Purchase separately), D. 60W PD charger (NOT included), E. 60W PD charger (NOT included) + 110V AC wall power charger at the same time.
  • Q4: Which way is best to power my CPAP machine ?
  • Re: HP300T power station can power your CPAP by three ways: 110V AC plug , 12-16.8V/10A DC plug and 60W PD. We strongly recommend that you can use DC to DC converter to work with this unit for CPAP and turn off or remove the HEATER / HUMIDIFIER to get more running time.
  • Q5. What kind of/size connection is needed for solar panels or car charger?
  • Re: DC5.5x2.1mm
  • Q6. Can it run AC,DC,USB output power while charging?
  • Re: Yes, it supports pass-through charging, so you can still run/charge AC/DC/USB electronics while the unit is charging. But we don't recommend you doing this, it will cause damage to battery life.

Technical Specifications:

Battery Capacity: 80,000mAh/288Wh
Built-in Battery: 100% Original High Quality Lithium ion Batteries
AC Output: 2* 330W 110V/60Hz Pure sine wave
DC Output: 1* 12-16.8V/10A Cigarette Lighter
Type-C: 1* PD60W IN/OUT put ( 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A), 1* PD18W OUT put (5V/3A, 9V/2A, 12V/1.5A)
USB Output: 2* QC 3.0 USB outputs (5V/3A, 9V/2A, 12V/1.5A)
LED Display: AC, DC, Type-C, USB IN/OUT put, Remaining power, Consumption time...
LED Lighting: 2W LED with 3 modes( Strobe, Solid, SOS)
Charging Input: DC15V/3A or PD 60W
Fully Charged Time: About 8hours
Size(L*W*H): 8.26*3.54*8.26in
Weight: 5.42 lb
Operation Temperature: -10℃ -- 40℃

Safe & Reliable Power

HP300T power station with pure sine wave inverter prevents electronics less wear, kept sensitive electronics running smoothly in phone, laptop, camera, computer, fan, TV and other devices. HP300T will automatically shut off to protect your devices when the power station is short circuit, overload, overvoltage, overheating, etc.

Not for devices over 330W

Can't power the devices which rated over 330 watts like Hair Dryer, Saw, Blanket, Crockpot, Grill, Kettle, Rice Cooker, Cooker, Micro-Wave Oven, Recliner, photography lights, Mixer, paddleboard pump...otherwise HP300T will shut off automatically to protect your devices. (Noted Kindly check the rate power of your electronics before using.)

Compact & Portable

HP300T portable generator / power station is only 5.4lbs and 8.26*3.54*8.26inches with an easy-carry handle bag, it's your perfect companion for emergency, power outage, outdoor party, night fishing, CPAP, home use, office, garden work, Van life, travel, RV trip, off-road, excursion, camping and more.

60W PD Input & Output

HP300T power station doesn't only meet the power requirements for all your PD devices (smartphones, laptops, lotebooks ...), but also can be charged by 60W PD charger. Noted that 60W PD charger is NOT included, you have to buy it separately.

Pass-through Charging

You can run 110V AC ,12-16.8V DC , Type-C, USB output power while charging. Supports charging and discharging at the same time. But we don't recommend you doing this, it will cause damage to battery life. Noted that it does not support automatic UPS backup.

What Will You Get ?

  • 1x Portable Power Station
  • 1x 15V 3A Power Adapter
  • 1x Cigarette Lighter Adapter
  • 1 x Instruction manual
  • 1x Carry bag
Capacity: 220Wh/64,800mAh 288Wh/80,000mAh
AC Output: 2* 300W 110V/60Hz Pure sine wave 2* 330W 110V/60Hz Pure sine wave
DC Output: 9-12V(Max: 10A) 12-16.8V(Max: 10A)
USB Output: 5V(Max: 3.1A) Type-C 1: PD60W IN/OUTput, Type-C 2: PD18W Output, 2* QC 3.0 USB outputs (5V/3A, 9V/2A, 12V/1.5A)
Charging methods: 3 Ways---110V AC wall power socket, Car cigarette lighter, Solar panel(Purchase separately) 5 Ways---110V AC wall power charger, Car cigarette lighter, Solar panel(Purchase separately), 60W PD charger (NOT included), 60W PD charger (NOT included) + 110V AC wall power charger
Color: Black Silver Gray
Dimensions: 7.9 x 7.9 x 3.1 inches 8.26 x 8.26 x 3.54 inches
Weight: 5 Pounds 5.42 Pounds
Carry bag: NA
Pass-through Charging Can't run AC or DC output power while charging. Can run AC or DC output power while charging. But we don't suggest, it will cause damage to battery life.

Shipping Policy

Free Expedited Shipping on All Orders.  Shipping times vary with an expected delivery of 3-5 days.  Need it sooner?  Select Express shipping for delivery in 1-2 days.  All shipping times are independent of order processing. With the exception of USPS Postage stamps***

We process orders between Monday and Friday. Orders will be processed within 2 business days of ordering and shipped the next day after the processing day.  Please note if you ordered multiple items we will try our best to ship them together however they may ship in multiple packages. We don't ship on weekends or Holidays. In situations where products are in high demand, processing time can take longer than 3 working days.


***All US Postage Stamp Booklets are shipped by standard envelope via USPS without a confirmation/tracking number to ensure we can provide Free Shipping on these items. Please allow 10-14 business days for the delivery of postage Stamps



We only ship to the contiguous United States. Please contact us if you have any questions at

Please ensure all delivery information is correct. If there is incorrect and/or missing information, we may be required to contact you to update the delivery information, which may cause delays in delivering your order. Delays may also occur as a result of customs clearance.

Your order may be delivered to you by either the local post office or a local courier. Depending on your area, most orders will be delivered by your local post service, so the package will be received with your regular mail. If you are not home when the delivery is made, a notice card may be left by the postal service to advise on how and where your delivery can be collected.


International Shipping Policy

We offer international shipping to many countries around the world. Please note that international shipments may be subject to customs fees, taxes, and other charges, which are the responsibility of the buyer.

Shipping Times:

  • USPS: 2-3 weeks for delivery
  • UPS: 1-2 weeks for delivery

Please note that these are estimated shipping times and can vary based on your location, customs processing times, and other factors beyond our control.

Shipping Methods: We offer two shipping methods for international orders:

  • USPS First-Class Mail International: This is our standard shipping method, which offers affordable rates but may take longer for delivery.
  • UPS Worldwide Expedited: This is our faster shipping method, which offers more reliable and faster delivery times, but comes at a higher cost.

Please note that some countries may have restrictions on certain products or shipping methods, and we reserve the right to cancel orders or change shipping methods based on these restrictions.

Tracking: All international shipments will include tracking information. Please note that tracking information may not be available for all countries or for all shipping methods.

Returns and Refunds: We accept returns for international orders within 30 days of delivery, as long as the items are in their original condition. Please note that we do not refund shipping fees or any customs fees, taxes, or other charges incurred during shipping.

If you have any questions about our international shipping policy or would like more information about shipping to your country, please contact us before placing your order


About Customs, Duties & Taxes

Recipients of international shipments may be subject to import taxes, fees, and customs duties (hereafter, "Import Fees"), levied by the customs office of your shipping destination. Import Fees vary according to the customs regulations of the destination country. Components that play a role in Import Fee calculations are (among others):

  • Product category and price

  • Shipping costs and package weight

  • Customs clearance channel

  • Import taxes based on custom duty amounts

Customs policies vary widely, and some countries don't charge Import Fees for shipments that fall below a minimum value. Contact the customs office of the destination country for more information.



Import Regulations

The recipient is the importer of record and must comply with all applicable laws and regulations of the destination country. Customs delays can affect original delivery estimates.


  • Customs offices in some countries or regions require the importer of record to provide a form of identification before releasing a shipment, such as a Passport, Tax ID, etc.

*Please note that these are estimated delivery times only, therefore DealsXS is not guaranteeing delivery dates.

*International Shipping - Seller reserves the right to change shipping carriers if needed based on the weight and size of the package.


What payment types do you accept?

  • We currently accept Visa, MasterCard, American Express, Discover, and PayPal.

Is it safe to use my credit card on your site?

  • Yes! The safety of your personal information is very important to us. For your security, we do not store your credit card information. We use a wide array of the best-in-class electronic and physical security measures and devices to protect your personal data and credit card information from unauthorized access.

What’s a Security Code?

  • Security codes, sometimes called card verification (CCV) data, are the digits (usually 3) on the back of your credit card. For cardholder security, we ask you to input these digits during checkout

Why can’t I check out?

  • There are a few reasons why you may not be able to complete checkout. Here are some solutions:
  • Credit Card Number or CCV: Double check that your credit card number has been properly entered, ensuring that no spaces are between any of the numbers.
  • Zip Code/Billing Address: Take a second look at your zip code, ensuring that you’ve input it properly.

How do I know my order went through?

  • You know you have successfully placed an order when you get to the Order Confirmation page, which will list your order number. You will also receive an email confirmation of your order.

Can I cancel my order?

  • As long as your order is still processing, we will do our very best to cancel your order once you have contacted us. Due to our goal to process orders as soon as we receive them, we cannot guarantee an order can be canceled once it is placed. If you’d like to cancel your order, please contact us via email at

​Are there any hidden or surprise fees or charges?

  • On purchases, you will pay for the cost of the items you order plus any applicable taxes, and that's it!

Why do I sometimes see different prices for the same item?

  • Our insider's list emails and site homepage display the lowest listed price for a given product. Some products are available in different sizes, colors, styles, or other options that may be listed at higher prices. For example, a set of twin-size bed sheets may cost less than that same set in king-size.

My question isn’t answered here. How can I get in touch with someone at DealsXS?

  • If you have any questions or concerns that were not addressed in this FAQ or on our Policies or About Us pages, please feel free to contact us via email at

Where do you ship from?

  • Our awesome teams ship directly to you from over 80 warehouses & suppliers around the US.  Our main warehouse is located in Chicago, IL.

How much does shipping* cost?

  • All items ship to you for free throughout the US.  International shipping coming soon. 

How do packages ship?

  • It depends on what you're ordering. Each supplier has a contract with the carrier of their choice, so it could be USPS, UPS, FedEx, etc. 

How long will it take to receive my order?

    • We ship from across the U.S so shipping times vary. In most cases, your item will ship within 1 business day. We do ask that you allow up to 2 to 5 business days total (business and standard) for your order to be shipped and delivered, just in case there are any unexpected delays. Express orders will ship & deliver within 24-72 hours.
    • We offer international shipping to many countries around the world. Please note that international shipments may be subject to customs fees, taxes, and other charges, which are the responsibility of the buyer.
  • International Shipping Times:

    • USPS: 4-8 weeks for delivery
    • UPS: 1-2 weeks for delivery

Will I receive a tracking number for my order?

  • Yes! When your order ships, you will be emailed a tracking number. Please note, it can take up to a week for that tracking number to appear on the carrier’s website.

Can I upgrade my shipping?

  • YES! Free Expedited shipping available on all order. Want it faster? For $9.99 We will express your order VIA USPS Priority Mail Service. 

What if I order multiple items? Will they ship together?

  • Not necessarily, as we deal with hundreds of suppliers across the country and throughout the world. Your items will likely ship separately.

Is PayPal Cash Back applied to my order?

  • No, it is credited to your PayPal account.

Where is my PayPal Cash Back?

  • PayPal cashback is applied to your PayPal account after you place your order.



Do I have to pay for shipping back to DealsXS when I return an item?

  • ALMOST-FREE RETURNS! HASSLE-FREE! Read more about our AWESOME return policy here.

How long do I have to return an item?

  • For most items, you have 15 days from the receipt of delivery to make a return eligible.  For more details please see our Returns page. Product Conditions offers deals on hundreds of thousands of Products-damaged, returned, open-box, and pre-owned products. A used or open box item purchased from can be returned within 30 days of receipt of shipment. Renewed products come with the Renewed Guarantee giving you a replacement or credit within 30 days of purchase if the item does not work as expected.




All of our products go through a quality check prior to being sold. We use conditions such as "Open Box" to give you an understanding of the overall condition the product is in. We then help you better understand the item condition by listing comments unique to that item.


An item that has been inspected and tested by or an performance-managed supplier, to work and look like new. The item has minimal to no signs of wear, or visible cosmetic damages when held from 12 inches away. Product may come repackaged. All accessories will be present, though some may be generic brands. The product comes with the Renewed Guarantee giving you a replacement or credit within 30 days of purchase if the product does not work as expected.

Open Box

An item in perfect working condition. Original protective wrapping may be missing. The original packaging may have minor damage, or item may come repackaged. Package damage is clearly defined for each item. All accessories are present.


**Almost-Free Returns is available ONLY for customers that pay the additional re:do coverage at checkout. The delivery addresses must be within the 50 states of the United States only, including Alaska and Hawaii. Almost-Free Returns is available to APO/FPO addresses when using a United States zip code only. Additional geographic shipping restrictions may apply to particular products. 

**Almost-Free Returns is NOT available for International Orders, For more info please email us.

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330W Portable Power Station, GrantMaya 288Wh 80000mAh Portable Generator Backup Battery with 110V Pure Sine Wave AC Outlet 60W PD QC3.0 USB Car Socket Flashlight for Camping CPAP Emergency Hurricane

$361.71 USD
$212.77 USD