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Anker PowerHouse 521 Portable Power Station

Brand: Anker

Regular price
Sale Price: $219.99
Regular price
List Price: $249.99
Sale price
Sale Price: $219.99
Our Spring Sale Is On!
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Fast & Free Shipping

Fast & Free Shipping

We offer fast & free shipping on most orders over $50 (before taxes, if applicable) to the continental United States. Some oversize/overweight products may incur a shipping charge.

All in-stock items will ship in two days or less.

Shipping Information

Please ensure the shipping information provided at checkout is accurate. We are not responsible for any losses, including missing parcels, package damage, losses as a result of delay, and other losses caused by incorrect shipping information that customers have provided.

A physical address is required. We do not ship to P.O. Boxes or APO/FPO/DPO addresses.

Order Confirmation

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and your payment method is pre-authorized for the purchase.

Then, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 2 business days), we will process the charges and submit the order for shipment.

Order Shipment

Please contact us for expedited shipping, or shipping to Alaska, Hawaii, and Puerto Rico.  These options are limited depending on the product.

We do not ship products to American Samoa, Micronesia, Guam, Marshall Islands, the Northern Mariana Islands, or the U.S. Virgin Islands at this time.  We also do not ship outside of the United States at this time.

If your order is in stock and we process the charges to your credit card, it will ship within two business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within three business days of your order, feel free to follow up with us at

All delivery times provided by Outbound Power or by the shipping carrier are estimates.  Delivery times are subject to acts of nature and other unforeseen circumstances.  Refunds are not provided due solely to order deliveries outside of the estimated delivery window.

Last Updated: 12-28-2022

Hassle-Free Returns & Exchanges


We strive for a stress-free, hassle-free return process.

In order for the process to take place as smoothly as possible, we ask all customers to observe the following requirements.

1. We have a 30-day return policy, which means customers have 30 days after the date the item shipped to request a return. Unfortunately, we are unable to accept returns beyond 30 days after the item shipped.

2. Most items are easily returned within 30 days of the shipment date. To initiate a return, please contact us at If the return is accepted, we will send the customer a return shipping label as well as instructions on how and where to send the package. Items sent back to us without first requesting a return will not be accepted.

3. To be eligible for a return, the item must be in the same condition as it was received and in its original packaging.

4. We may ask for confirmation of certain details as to why an item is being returned for verification or if a warranty request is involved.

5. Charging a restocking fee is a B.S. way for some companies to make money off your return.  We do not charge restocking fees.

6. The customer may be responsible for return shipping costs depending on the product. Whenever possible, we strive to cover the return shipping fee.

7. To assure your refund, please use a trackable mail service. We are not responsible for lost or missing packages.


Upon the receipt of the return package, the item will be examined and a full refund will be issued to the original method of payment. A refund receipt will be emailed to the email address provided during the original purchase.

Refunds are processed as soon as the refund request is approved - that means that the money leaves our account immediately. If a refund has not yet been received, first check the bank account again. Then contact the payment method company as it may take some time before the refund is officially posted. We have seen some credit card companies take up to 30 days to show that the refund has been put back on the card.


The fastest way to exchange an item is to order it separately when the return is accepted.  Depending on inventory availability, we may be able to initiate a direct order of the exchange product after the original item is returned.


Cancellations are accepted up to the point of shipment. If the order has shipped, the customer is responsible for return shipping charges. Refunds are only issued to the original purchase method.


The customer must inspect the packaging on arrival.  If damage is present, the customer should make note of it when signing for delivery. If the item arrives damaged, the customer must send photos to and we will process an insurance or warranty claim on the customer's behalf.

Last updated: 5-21-2023

Easy Product Financing

Shop Pay

Buy now, pay later with Shop Pay!

We are pleased to partner with Shop Pay to provide our customers with the ability to finance products on the Outbound Power store over $50.*

When you select Shop Pay at checkout, you may split your total purchase into 4 interest-free payments. No added interest or fees when you pay on time!

Choose Shop Pay at checkout to support carbon removal projects at no extra cost.

*Rates from 0% APR or 10-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: []. Options depend on your purchase amount, and a down payment may be required. State notices to consumers [].

Introducing the Anker PowerHouse 521 Portable Power Station - the ultimate solution for all your power needs on the go! With its sleek and compact design, this power station is perfect for weekend outdoor activities such as camping, hiking, or even tailgating.

But that's not all - the Anker PowerHouse 521 is more than just a simple portable charger. It's a powerful and versatile device that can power up multiple devices at the same time. Equipped with a 256Wh battery capacity, it can provide power to your devices such as laptops, smartphones, tablets, and cameras. Please be advised that this power station is not ideal for overnight CPAP machine usage.


Anker PowerHouse 521 Features

200 Watts of Continuous Power

One of the standout features of the Anker PowerHouse 521 is its built-in AC inverter that can provide up to 200W of continuous power. This means you can power up even the most demanding devices like power tools, electric grills, and other outdoor equipment.

6 Ports to Charge Your Essentials

Additionally, the PowerHouse 521 comes with multiple charging options, including a 60W USB-C port, two USB-A ports, two DC ports, and a car outlet. You can also recharge the PowerHouse using solar panels or a car charger, making it a truly versatile and eco-friendly device.

Safe & Reliable

But what really sets the Anker PowerHouse 521 apart from other portable power stations is its advanced safety features. It comes with overvoltage, overcurrent, and short-circuit protection, ensuring that your devices are always safe and secure while charging.

Charge From 0% to 80% in an Hour and a Half

Using the extra 60W USB-C port, your PowerHouse 521 can be up and running in no time.

Long-Lasting LiFePO4 Batteries

The Anker PowerHouse 521 uses Lithium iron phosphate (LiFePO4) batteries which have a 6 times longer lifespan and can last 3000 cycles compared to the average battery of other portable power stations.

Light Up the Dark With the Build-In LED Light

The PowerHouse 521 Features a built-in LED light to keep the dark at bay.

Keep Charged Up Longer With Power-Saving Mode

To reduce energy waste, the power station will instantly power off once your devices are fully charged. For a stable and optimal charge, simply turn off power-saving mode.

Track Your Power Usage With the Smart LED Display

The PowerHouse 521 easy-to-read LED display shows the remaining battery capacity, current input and output status, as well as estimated recharge time.


What's In The Box

  • 1 x Anker 521 Powerhouse
  • 1 x DC Adapter
  • 1 x Car Charging Cable
  • 1 x Welcome Guide
  • 5-Year Warranty



Anker Provides a 5-Year Full-Device Warranty

Instead of the average 2 years, Anker 521 Portable Power Station is designed to reliably power your devices every day for 10 years. Additionally, it offers a superior 5-year full-device warranty for a guaranteed, worry-free experience.


Anker PowerHouse 521 Specifications

Capacity 256Wh
Lifecycle 3000 cycles to 80%+ capacity
DC Input 11-28V⎓5.5A (65W Max)
USB-C Input 5V⎓3A / 9V⎓3A / 15V⎓3A / 20V⎓3A (60W Max)
Car Charger Output 12V⎓10A
AC Output 110V~ 1.82A, 50Hz/60Hz, 200W
USB-A Output 5V⎓3.6A (2.4A Max Per Port)
USB-C Output 5V⎓3A / 9V⎓3A / 15V⎓3A / 20V⎓3A (60W Max)
Operating Temperature 32°F-104°F / 0°C-40°C
Ambient Temperature 32°F-104°F / 0°C-40°C
Dimensions 21.6x21.14x14.4cm / 8.5x8.32x5.67 in
4.34kg / 9.57 lbs



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