⚡ Power your freedom, anywhere, anytime.
The Anker 521 Portable Power Station features a robust 256Wh LiFePO4 battery with InfiniPower technology, delivering up to 300W continuous and 600W peak power through 6 versatile ports including USB-C PD. Designed for durability and eco-conscious users, it supports weekend trips and high-wattage devices with a compact, impact-resistant build and smart temperature control.
Item Dimensions L x W x Thickness | 8.5"L x 8.32"W x 5.67"Th |
Item Weight | 8.2 Pounds |
Battery Cell Type | Lithium Ion |
Color | Black |
Warranty Type | Limited |
Recommended Uses For Product | Laptop |
Number of Outlets | 2 |
Compatible Devices | Laptop |
Is Electric | No |
Portable | Yes |
Voltage | 110 Volts (AC) |
Power Source | Solar Powered |
Number of Ports | 6 |
Connector Type Used on Cable | USB Type C |
Additional Features | Portable |
T**A
Great
Really easy to use and it comes with a 5-year warranty, which is a great bonus. The overall quality is solid—it feels durable and looks really sleek. The light is surprisingly bright, and I love that it includes an energy saver button. The solar kit is a bit pricey, so we’ll have to save up for that part, but it’s definitely worth considering down the line. Overall, a great product and I’d highly recommend it!
M**.
Pair with Solar Panel for Excellent Results
I was very impressed with the product. I paired this with a 100W solar panel and was able to run a JBL Partybox 110 at full blast all day at the beach and the Power station remained at 99-100% all day. It is very high quality and I would definitely recommend.
A**M
Power station for emergency or camping
It came with AC adapters only overall good enough for my device I'm using little things that keep me charging my cell phone and USB fans for week good for emergency or camping
J**Z
Must-Have for Backup Power or Off-Grid Adventures!
The Anker 521 Portable Power Station is hands down one of the most reliable and versatile tech investments I’ve made in a while. Whether you're prepping for unexpected outages or planning a weekend of camping, this unit delivers exactly what you need—and then some.⚡ What Makes It Great:Built to Last: With InfiniPower technology and LiFePO4 batteries, this thing is made for longevity. Knowing it’s built to last over a decade with daily use gives me peace of mind. You can feel the quality in the build too—it’s rugged, impact-resistant, and clearly designed for the long haul.Perfect for Weekend Trips: The 256Wh capacity is ideal for recharging phones, tablets, portable lights, and even a mini fan or camera setup. I took it on a two-day trip and still had juice to spare.USB-C Port is a Game Changer: The 60W PD USB-C port means no more bulky adapters for your laptop or other devices. Just plug and go. I use it for both my MacBook and my Switch—no problems whatsoever.SurgePower Up to 600W: This was a pleasant surprise. The 300W rating with 600W peak support let me power a mini-fridge and an electric kettle (separately, of course) without issue.6-Port Convenience: The mix of 2 AC ports, 2 USB-A, 1 USB-C, and a car outlet makes this incredibly versatile. Whether I’m charging a phone, running lights, or plugging in my camera gear, I’ve got plenty of options.🔋 Final Thoughts:If you’re looking for a true energy backup solution that’s also perfect for travel, camping, or emergencies, this is it. Anker knocked it out of the park with this one. I can’t imagine not having it now—it’s one of those purchases that feels instantly worth it.Highly recommend it—no regrets whatsoever.
P**K
Perfect power station!
I got this with a solar panel to go with it. And it is an amazing portable power station. My phone is charged in no time, and I can go for days without recharging the power station! Love this product
-**-
Working well so far in limited testing
I bought this as an auxiliary power source for use in a vehicle--I need to carry a 12 volt refrigerator with me (special dietary needs, road food, etc.), and occasionally charge up Milwaukee tool or DSLR batteries even if the vehicle is not running.The packaging of the 521 is ideal, although I wish the two 120V outlets had "real" 3-prong outlets. The size is perfect when a vehicle is loaded up--it uses little space.I ran two tests with the refrigerator connected to the 12 volt outlet. The refrigerator operates in both ECO and MAX modes. The ECO mode draws 30-35 watts while operating, while the MAX runs at anywhere from 40-50 watts. I ran the refrigerator indoors somewhat near a heat outlet, to simulate being inside a warm vehicle. The refrigerator is rated to deliver 256Wh of power, so I calculated that worst case would be the refrigerator running constantly for 5.5 hours. Turns out that with the refrigerator cycling on and off, it ran over 20 hours before the battery was down to about 2-4% capacity.EDIT: I had a charging issue that was partly my own misunderstanding and partly my car's wiring. I was at first unsuccessful in getting the 521 to charge from both inputs.First, I had to use a USB-C PD charger, which provides higher voltages than standard USB chargers. This allowed a full 65 watts on the USB-C input for charging. But I would add the 120 volt charger that came with the 521 in tandem with the USB-C charger wasn't getting the ~120 watts of charging. I later realized that for battery health, the 120 watt charging through both DC inputs only happens when the battery's state of charge is lower. If it's nearly fully charged, it cuts back to only a single DC input.Yet, I still could not get both to work in the car. I have a 150 watt 120-volt inverter in the car, which plugs into a rear accessory outlet using a lighter plug. It turns out that if I have both the 521's 120 volt charger and a USB-C PD charger plugged into the inverter, the inverter stops working. Likewise, if I use a separate USB-C charger that plugs into the accessory outlet (I have a 1:3 adapter with a voltage readout), the inverter cuts out. It seems the inverter is cutting out when voltage drops below a nominal value like 12.8 volts. In essence, the wiring from the fuse box to the accessory outlet cannot provide full wattage without voltage sag. When I plug the USB-C PD adapter into an accessory outlet in the center console (which is on its own 15 amp circuit), I can get 120 watts of charging to the 521.I will wire up my own circuit with 6-gauge wire to run a 300 or 400 watt inverter and a pair of accessory outlets, as this will eliminate the voltage drop.With ~120 watts, this provides a quicker recovery for the battery while the refrigerator is operating, which is exactly what I needed.
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