

⚡ Power your life, anywhere, anytime — because your devices deserve the best backup.
The Anker 521 Portable Power Station is a compact, ultra-durable 256Wh LiFePO4 battery powerhouse delivering 300W continuous output through 5 versatile ports. Designed for professionals and adventurers alike, it offers rapid recharge, a rugged drop-proof build, and a 10-year lifespan backed by a 5-year warranty. Solar panel compatible, it’s the ultimate portable energy solution for work, travel, and outdoor living.


















| ASIN | B09Q5DJV71 |
| Best Sellers Rank | 21,583 in Garden ( See Top 100 in Garden ) 58 in Outdoor Generators |
| Brand | Anker |
| Brand Name | Anker |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 301 Reviews |
| Engine Power Maximum | 200 Watts |
| Engine Type | 4 Stroke |
| Frequency | 60 Hz |
| Fuel Type | Battery |
| Fuel type | Battery |
| Ignition System Type | Electronic |
| Included Components | Battery |
| Is Electric | Yes |
| Item Dimensions L x W x H | 21.6L x 14.4W x 21.2H centimetres |
| Item Type Name | Anker 521 PowerHouse 256Wh Portable Power Station |
| Item Weight | 8.16 Pounds |
| Item height | 21.16 centimetres |
| Item weight | 8.16 Pounds |
| Manufacturer | Anker |
| Model Name | Anker 521 Portable Power Station |
| Model Number | A1720 |
| Output Wattage | 200 Watts |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product Warranty | 2 year manufacturer. |
| Recommended Uses For Product | Camping |
| Recommended uses for product | Camping |
| Running Wattage | 200 Watts |
| Special Features | Portable |
| Starting Wattage | 200 Watts |
| Total Power Outlets | 6 |
| UPC | 194644096014 |
| Voltage | 230 Volts (AC) |
| Wattage | 300 watts |
L**N
Great compact power bank
Very handy, small compact and works amazingly well. Great quality and value for money
M**S
Fantastic little Power Station and still going strong over a year later!
Update (October 2023) - After more than a year using this great little power station it is still working perfectly and providing the same level of performance. Compared to some models it is super portable, which means I am more inclined to take it with me on my travels. Recently I have been using it to power a 5G home router and my laptop, creating a truly portable office! Original Review: Having waited for this Power Station to be on offer, I grabbed it while 15% off. The idea behind this purchase is to use it as a backup to power my Indel B TB15 fridge in my campervan, as well as the ability to charge mobile devices when out and about. Test 1 - Powering an Indel B TB15 fridge at 3 degrees. After charging the battery to 100%, this little power station managed to power total of 26 hours before reaching 1%. While not a scientific test, this should comfortably provide power for up to 24 hours for a small compressor fridge. Power consumption is 30-31W, but of course the compressor only operates intermittently. Test 2 - Fastest Recharge to 100%. For this test, I used the supplied 60W power adapter and a 65W USB-C power supply. Result: The battery charged from 1% to 100% in under 2.5 hours. I will update this review with further tests, but so far I can highly recommend the Anker power station, especially with the 5 year warranty! I hope you found this review helpful :)
R**C
compact, full of features, minor drawbacks
My review is more of a 4.5 / 5. The unit functions very well, charges either through the provided charger, USB C Power delivery in the front, or any other DC power into the port in the back (never really shown in reviews). It also seems to be able to charge and power items at the same time, which some other battery banks cannot do. The light bar on the front is not the best, but it is an extremely warm white, which makes it comfortable to look at. Similar, I have a picture of the details of the charger, as i have never seen any information about this. The Anker 521 also fits perfectly inside a certain popular brand compressor 12L car fridge, which was also powered for at least 8 hours with the Anker. The drawbacks? If you have something plugged into the 12V car lighter port, the rubber cover gets in the way of the power button for turning that port on and off, and that 12V port has no "locking" tabs inside. The power buttons (though slightly concave) are just a single light touch from turning things on and off. the "screen on" button and the "DC power on/off" button are very close, and in the first few weeks of using it i would get them mixed up. And even more minor, the provided charger is a little bit bulky, and a little bit slow, charging the device in a few hours. Not a concern for me.
H**T
Probably one of the most pointless things I've ever bought
Firstly, let's clear things up for those people who think this is going to be a money saving device. It's not, it can't be. I see reviews for many different power stations saying they only use these to charge phones off solar power and don't use home electricity anymore. Bit of maths for you. The average cost of charging your phone for the year is less than £1, yup, they use hardly any power at all. So let's be super generous and call it £1, and say you got a deal on some panels and got this and the panels for £400 all in (which you probably won't, it'll be more like £450-£600). If working it at £400, you've got to use it as a phone charger for 400 years to break even. Even if you're a family of 4 and you use it for all phones, still 100 years needed. Add in laptops, iPads etc, you're still never ever going to get your money back, they use so little power. Secondly, this is just a powerbank, that is all it is. Yes it has a plug socket, but it can only be used on items less than 200w, which is pretty much nothing, almost anything that falls in to this category can use USB. My Dell XPS 13 for example. It can charge via USB C. I got a 45w 20000 mah charger for £23 off Amazon. A 13th of the price of this. 200w means no kettle, no hairdryer, no garden appliances like strimmers etc. Is it convenient? Not really, it's quite big, even for 80000 mah. Stack 4 20000 mah powerbanks and you're nowhere near this size or weight. Is it good for camping? Well as a powerbank yes, but as per the previous comment, so is any other powerbank, and they will be much more travel friendly. It's completely pointless. Most solar panels will charge a normal powerbank by USB C, or plug straight in to your phone etc. I have yet to see any advantages. And the BEST bit? You can't send it back, at all. Apparently because of the batteries it can't be posted. But how did it get here you ask? By post, yup, it's ok to go one way only apparently. Save you're money, get 2 decent powerbanks.
A**R
I liked this item
Good and compact and very nice item
S**E
Great basic unit for camping etc
Pros: ✅ Lightweight ✅ Easy to carry ✅ Decent capacity for the price ✅ Very clear display that shows lots of useful info Cons: 🛑 Needs a couple of other USB C ports 🛑 The light isn't dimmable This is a great unit, has all the basic ports (though probably needs another/more USB C, and has a whole bunch of charging options too. You can charge using the DC port, on the back or the USB C port in the front, in fact you can use both simultaneously to double the speed. It has a UK 3 pin plus to DC wire, and also a car 12v to DC connector. Solar panels will also typically plug into this DC connector. It's a relatively standard DC pin size, but as one reviewer states negatively "Why is it proprietary?" - well, firstly it's not proprietary, and secondly the reason is doesn't use a kettle/clover/figure 8 cord like a lot of other appliances are because these are AC connections, and the unit is a DC unit. Any AC power will need to convert to DC to charge the batteries. This is done usually with with a transformer on the plug (as with the supplied one), or half way along the cable (as per a lot of laptops with the power 'brick'), or have it added internally inside the unit itself which adds weight, bulk, and heat to the unit making it less portable. It's a non issue, and even if it were the USBC charges almost exactly the same speed as the DC port, and that's "standard" (if you have a suitable decent USB power supply..) It is rated at 256wh (Watt Hours), meaning you can theoretically supply 256 watts for an hour... (theoretically, as a) they are never that accurate, and b) there is a 200w limit). This may seem obvious to some, but not everyone understands electricity and thus might be confused about what to expect. 256wh is the same as 128w for 2 hours, 64w for 4 hours etc etc.... The display shows the current output, and an estimation of how long it can continue to provide the current output. So if you are running a cool box, or lighting etc and it is showing 25w output, then you know it should last about 10 hours. Similarly, it also shows the charging input speeds - less useful when plugged into the mains, great for seeing what your solar panel is generating - As DC charging is limited to 65w, don;t get a 65w solar panel, get a 100w or more if you intend to use Solar, these things only produce the stated wattage in ideal conditions, so you'll want to have a panel that can produce 50-60w reliably in less ideal conditions, rather than a 60w one that will only produce 20-30 on overcast days for example. It has a light but it has no adjustment, just on, off, or flashing... - might be too bright for ambient lighting in a small space, which is a shame as it's a nice warm tone. The handle is permanent and not folding, so super sturdy.
D**E
Much better than I expected, but a slightly annoying fan.
I really like this product. It charges fast, holds the charge without self-discharging, and has great features for the money/size. I bought this as I work from home and was having some work done on my house so the power would be cut off randomly. I used this like a UPS (uninteruptable power supply) for my 34 inch 4k screen attached to my pc (using the mains power plug). The battery could keep the screen on (bright) for about 7-8 hours. It got me through the work period with my hardly noticing the mains power outages. Even the light was useful as the office is quite dark with the mains off. I used it on another occaision as backup power for my broadband router, and this only draw a negre current so the life would be huge but the router is under my TV and despite the mains being on, and the battery already fully charged, the fan would occaisionally come on. This was slightly annoying when watching tv but hideously annoying of the TV was off and I was taking a nap on the couch. The unit isn't hot when this happens. In fact, it seems quite cold. This is the only gripe though, as apart from the the unit does exactly as stated. It provides a good amount of power and versatility and if you use a GAN charger as well as the standard charger that comes with it, it charges in no time at all. Actually, I do have one more gripe. Not enough USB-C ports. It only has one! Given the sixe of the unit, 2 or 3 should be the minimum. It has two USB-A 3 ports, but I don't have any USB-A devices anymore.
O**E
Powerful battery
This sits in the back of my car for emergency power, turning it into a drivable office. Goes weeks without use, and still retains a decent amount of power. Lots of ports, but having a 3-pin for my laptop is how I normally use it. Invaluable when you don't want to sit in a cafe or McDonald's, but need to quickly work on something on your laptop, power a Starlink, or a heated blanket on a camping trip.
Trustpilot
3 weeks ago
3 weeks ago