Few issues are extra panic-inducing than a cellphone’s battery hitting 5 p.c while you’re nowhere close to a charger. That’s what energy banks are for. Maintain a full one in your bag and also you’ll by no means have to fret a couple of useless cellphone (or pill and even laptop computer) once more. For over two years, I’ve examined dozens of moveable chargers, starting from small MagSafe-compatible packs to huge 27,500-milliamp-hour bricks. Not each battery out there’s a winner, and the tech appears to be steadily bettering — what I’m testing in 2025 positively outshines what I used to be making an attempt out in 2022. So this information is right here that can assist you choose the very best energy financial institution for any state of affairs, together with our recommendation on what to think about when choosing out a transportable charger.
Desk of contents
Finest energy banks for 2025
What to search for in a transportable battery pack
Battery sort
Practically each rechargeable energy financial institution you should buy (and most moveable gadgets) comprise a lithium-ion battery. These beat different present battery varieties by way of size-to-charge capability, and have even increased in vitality density by eight fold up to now 14 years. In addition they don’t suffer from a reminiscence impact (the place a battery's lifespan deteriorates because of partial fees).
One downside you will have heard is the potential for lithium ion batteries catching fire. To restrict the hazard, battery packs require inside mechanisms to restrict issues like voltage and stress. When you ought to nonetheless make certain a battery isn’t uncovered to pointless stress like extreme warmth, injury from drops or working in freezing climate, battery packs are thought of protected sufficient to carry on an airplane. Based on the TSA, exterior batteries rated at 100Wh or much less (which all of our suggestions are) can fly with you – simply ensure you stash them in your carryon as they aren’t allowed in checked baggage.
Capability
Energy financial institution producers virtually all the time checklist a battery’s capability in milliamp hours, or mAh. Smaller batteries with a 5,000mAh capability make good cellphone chargers and may fill a smartphone to between 50 and 75 p.c. Bigger batteries that may recharge laptops and tablets, or give telephones a number of fees, can exceed 25,000mAh and we’ve got a separate guide that covers that whole class.
Unsurprisingly, the costs on most batteries goes up as mAh capability will increase, and since batteries are bodily storage models, measurement and weight go up with capability as effectively. If you’d like extra energy, be ready to spend extra and carry round a heavier brick.
You would possibly suppose {that a} 10,000mAh energy financial institution may cost a 5,000mAh cellphone to 100% twice, however that’s not the case. Along with easy vitality loss via warmth dissipation, components like voltage conversion additionally carry down the quantity of juice that makes it into your cellphone. Most producers checklist what number of fees a battery may give a sure smartphone. In our assessments, 10,000mAh of battery pack capability translated to roughly 5,800mAh of system cost. 20,000mAh chargers delivered round 11,250mAh to a tool, and 25,000mAh banks translated to about 16,200mAh of cost. That’s a mean effectivity charge of round 60 p.c.
Wi-fi
Extra producers are making energy banks with wi-fi charging. Not hassling with cables is sweet, however it’s necessary to notice that wi-fi charging is less efficient than plugging in your cellphone. Exterior of MagSafe choices, wi-fi moveable chargers traditionally didn’t make the lower for our prime picks for this information for that motive. The Qi2 wi-fi charging commonplace arrived final 12 months and improves efficiency for wi-fi charging, together with for moveable banks. At the moment, iPhones are the one handsets that help the brand new tech, however because it’s an open commonplace, anticipate Google, Samsung and others to undertake it for future telephones. In my testing, I’ve observed an uptick within the efficiency of non-Qi2-enabled batteries as effectively, so that you'll now see wi-fi choices on this checklist.
Ports
Since Apple ditched the Lightning cable and adopted USB-C, we’re getting nearer to a typical for charging connections — and all of our picks have a minimum of one such port. However loads of different gadgets use older interfaces, like USB-A and microUSB ports, plus Lightning for older iPhones. You will discover cables with nearly any mixture of these connections, so while you’re choosing out a battery, simply verify that one finish of your most well-liked wire will match.
Most battery packs have a couple of port, which supplies you completely different charging choices. You’ll usually see a minimum of one port labeled “in/out,” which implies you should use it to each cost the financial institution and cost your system. Whereas USB-A output ports can energy up smartphones and different small gadgets, they’ll’t cost bigger gadgets. Plus, they aren’t as quick as USB-C ports general. That’s one thing to remember while you’re deciding which ports and charging cables to make use of to attach your cellphone to the pack.
There’s much more variation amongst USB-C ports themselves, with completely different ports on the identical system supporting completely different energy switch charges. What which means in sensible phrases is an iPhone will cost simply wonderful plugged into an influence financial institution’s 18W port. However to correctly cost, say, a MacBook or related laptop computer, it’ll want the additional juice provided by a 100W port (which bigger energy banks can supply). Energy banks with a couple of port may also cost a number of gadgets on the identical time, however speeds and the general cost delivered might be decrease.
You’ll additionally wish to contemplate your charging cable. For something bigger than a smartphone (and to entry fast-charging capabilities) you’ll wish to use USB-C ports and cables. However not all cables are created equal, even after they have the identical USB-C plugs on the tip. If you’d like energy supply from a 100W USB-C energy financial institution port, you’ll want a 100W-rated USB-C cable. Fortunately, energy banks able to delivering 100W have a tendency to incorporate a appropriate cable. For any gadgets that don’t, we’ve tried and preferred Anker’s 100W USB-C cable. For smaller gadgets, we used this 60W cable from Nimble and we don’t advocate bothering with cables below 60W. For round $20, higher-capacity charging cables will ensure you’re not losing time with connections that restrict your potential energy switch.
Design
For essentially the most half, these rechargeable batteries have a squared-off, brick-like design, although many nod in direction of aesthetics with enticing finishes and detailing. Whereas that doesn’t have an effect on how they carry out, it’s a consideration for one thing you’ll work together with recurrently. Some moveable energy stations embody additional options like MagSafe compatibility, a built-in wall plug or perhaps a kickstand. Practically all have some kind of indicator to let you know the way a lot accessible cost your energy financial institution has left, often expressed with lighted pips close to the facility button. A number of the newer banks take {that a} step additional with an LED show indicating remaining battery share.
How we take a look at finest energy banks
Earlier than we even put our fingers on a battery pack, we did intensive analysis. We thought of manufacturers Engadget reviewers and employees have tried over time and we checked out buyer rankings on retail websites like Amazon and Finest Purchase. Then we get our hanHere’s the complete checklist of energy banks we've examined, which vary from small wi-fi banks to giant, multi-device batteries.
MagSafe-compatible
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Apple MagSafe Battery Pack (5,000 mAh)
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Spigen ArcHybrid Mag (5,000mAh)
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Anker 521 Magnetic Battery (5,000 mAh)
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Mophie snap+ PowerstationMmini (5,000mAh)
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Baseus Magnetic (10,000mAh)
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Anker MagGo Power Bank (6.6K) (6,600 mAh)
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Anker 633 Magnetic Battery (10,000mAh)
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Anker MagGo Power Bank (10K) (10,000 mAh)
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UGREEN 10,000mAh Magnetic (10,000mAh)
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EcoFlow Rapid Magnetic (5,000mAh)
Low capability (≤10,000mAh)
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Mophie Juice Pack (2,400mAh)
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Anker 511 Power Bank (5,000 mAh)
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Anker 313 Power Bank (10,000mAh)
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Nimble Champ (10,000mAh)
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Biolite Charge 40 PD (10,000mAh)
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Anker Nano (5,000mAh)
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Nimble Champ (10,000mAh)
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Satechi Quatro Wireless bank (10,000mAh)
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Anker 10K Fusion power bank (10,000mAh)
Mid capability (10,001 – 20,000mAh)
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Baseus Blade 2 (12,000 mAh)
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Otterbox Fast Charge (15,000mAh)
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Mophie Powerstation Pro (20,000mAh)
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Anker Prime (20,000mAh)
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Nestout Portable Charger (15,000mAh)
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Nimble Champ Pro (20,000mAh)
Excessive capability (20,001mAh+)
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Mophie Powerstation Pro XL (25,000mAh)
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UGREEN Power Bank 25,000mAh 145W (25,000mAh)
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Anker 737 Power Bank (25,600 mAh)
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Zendure Supertank Pro (26,800mAh)
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Mophie Powerstation Pro AC (27,000mAh)
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Lion Energy Eclipse Mag (27,000mAh)
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Lion Energy Trek (27,000mAh)
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HyperJuice 245W (27,000mAh)
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Anker Prime 27,650mAh Power Bank (27,650mAh)
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Anker laptop power bank with built-in cable (25,000mAh)
We're constantly updating this information as firms launch new merchandise and we take a look at them. We take away some merchandise as we discover picks which can be extra worthy of the very best moveable charger designation. We additionally add up to date specs and costs the place mandatory.
For testing, I used every battery with some mixture of an iPhone 15, an iPhone 14 Plus, an iPhone 11, a Samsung Galaxy S22 Extremely, a Galaxy S23 Extremely, a Fifth-gen iPad Air and an M1 Professional 16-inch MacBook Professional. I charged one cellphone battery at a time, though some packs are able to multiple-device charging. I charged the telephones and tablets from between zero and 5 p.c till they had been 100% full (or till the facility financial institution was useless), and didn’t use the telephones or tablets whereas they charged apart from to energy them on and enter the unlock code. Within the case of the MacBook, I used it whereas it was charging (it’s my work pc).
I used the charging cable included with every energy financial institution to cost the Galaxy S22 Extremely, MacBook Professional and the iPad Air. For the iPhones, I used the USB-C to Lighting cable that Apple gives. Within the case of the lower-capacity energy banks that didn’t embody a wire or included one with USB-C to USB-A connectors, I used this 60W-rated USB-C to USB-C cable.
For reference, listed below are the battery capacities of every system we used for testing:
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iPhone 11: 3,110 mAh
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iPhone 14 Plus: 4,325 mAh
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iPhone 15: 3,349 mAh
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Galaxy S22 Ultra: 4,855mAh
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iPad Air: 7,729mAh
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16-inch M1 Professional MacBook Professional: 27,027mAh
I famous the instances for every cost and the variety of fees every financial institution supplied. I additionally paid consideration to issues like ease of use and general design.
Different energy banks we examined
Anker Prime 20,000 mAh energy financial institution
Anker’s Prime bank was our earlier choose for the very best premium energy financial institution, however I assumed it labored finest with the costly (but very handy) base. Contemplating it additionally doesn’t have any built-in cables, we determined to bump the Prime battery from its place and substitute it with the Anker Retractable Cable Laptop Bank. There’s nonetheless a lot to love concerning the Prime battery: it’s stable, enticing and tells you simply how a lot cost it has left with its onboard show. If you add the elective base, you not solely get a handy drop-and-go strategy to recharge, it additionally acts as a charging hub with three extra USB ports.
EcoFlow Speedy magnetic
I used to be curious to check out the primary energy financial institution from EcoFlow, an organization that primarily makes bigger energy stations and whole-home backup batteries. The primary providing within the model’s Speedy collection is a Qi2-enabled magnetic charger with a 5,000mAh capacity. It seems fairly good with shiny silver accents and soft-touch gray plastic on the MagSafe-compatible entrance. There’s just a little pull-out leg that sturdily shows your cellphone because it fees and the connected USB-C cable allows you to refill gadgets straight, then tucks out of the best way when it’s not in use. Nevertheless it didn’t outperform our prime choose within the MagSafe class, by way of each charging speeds and the quantity of cost delivered.
Baseus Blade 2
The Blade 2 from Baseus has a novel, flat form that’s just a bit wider than an ereader — which can make it simpler to slide right into a low profile laptop computer bag. It charged a Samsung Galaxy S23 Extremely significantly quicker than every other battery financial institution we tried, getting it from 4 p.c to full in simply over an hour. It then crammed the cellphone again to 62 p.c from useless on a second cost in a couple of half an hour. However $100 is loads for the standard energy financial institution that holds fewer than two full fees. But when you could find the Blade 2 on sale, snap it up.
Anker MagGo (6.6K)
Anker’s 6.6k MagGo is fairly much like our prime choose for a MagSafe-compatible battery pack. It helps the Qi2 charging commonplace and props up your iPhone so you should use it or allow StandBy mode whereas powering up. This one even allows you to set the viewing angle from 30 to 65 levels. It was speedy in getting an iPhone 15 as much as 50 p.c in about 40 minutes. However for the added bulk, it doesn’t have as a lot capability because the 10K MagGo, holding simply sufficient juice for a single full cost plus about 5 p.c. However it’s $20 cheaper, which can be key for some.
Mophie Snap+ Powerstation Mini
The Mophie snap+ Powerstation Mini is extremely well-built. It feels premium with a rubberized contact level for the MagSafe charging pad and a stand that runs all the width of the financial institution itself, making it additional sturdy. It’s compact, too, however solely carries a 5,000mAh capability, which will get you a partial cost on most newer or bigger telephones. Our present MagSafe/iPhone pick has double the capability, a stand and a digital show — for simply $20 greater than the Powerstation Mini.
Energy financial institution FAQs
What's the distinction between a transportable energy financial institution and a transportable charger?
A slew of phrases are used to explain energy banks, together with moveable batteries, moveable chargers, exterior battery packs and even, considerably confusingly, USB chargers, which is what wall chargers are sometimes known as. All of them imply the identical factor: a lithium ion battery that shops a cost so you possibly can refill a smartphone, pill, earbuds, console controller, ereader, laptop computer, or simply about every other system with its personal built-in, rechargeable battery.
There’s little distinction between the phrases, so the specs you’ll wish to take note of are capability (expressed in mAh), measurement and weight so you could find the precise steadiness between recharging what you want and portability.
Energy stations, however, are distinct. These are greater models (typically across the measurement of a automotive battery) that can be utilized to cost a number of gadgets a number of instances, however notably, they’ll’t be taken on airplanes.
Does quick charging truly break your battery?
Not precisely. The actual enemy of a battery’s longevity is warmth. The quicker you cost a battery, the extra warmth is generated. Trendy telephones have options that hold the battery cool whereas charging, like bodily warmth shields and warmth sinks, in addition to software program options that decelerate processes that generate an excessive amount of warmth. Telephone producers are eager to advertise a cellphone’s fast-charging skills, so that they had to determine methods to make quicker charging work.
Whereas there aren’t long-term research on what quick charging does to a cellphone, a study on EV batteries (which use the identical normal idea of charged lithium ions flowing from one aspect of the battery to the opposite, absorbing or releasing a usable cost) confirmed a really slight lower in capability over time with solely quick charging — although what truly made a bigger distinction was how sizzling the battery itself was, because of ambient temperatures, when it was charged.
Briefly, quick charging may very well be barely tougher in your battery than regular charging. However the safeguards most smartphones have make that distinction pretty negligible. To actually make sure you’re taking the very best care of your battery, limiting warmth publicity general is among the finest issues you are able to do.
Can you utilize an influence financial institution for all of your gadgets?
That relies on the scale of the financial institution and the scale of your system’s battery. A small 5,000mAh battery isn’t sturdy sufficient to cost laptops, however a transportable charger with a 20,000mAh capability will give your pc a partial refill. You even have to think about port compatibility. In case your system has a USB port, you’ll be capable to simply discover a cable to attach it to a battery. In case your system has a extra distinctive port, akin to a DC port, you gained’t be capable to use a battery. Gadgets with an AC cable and plug may be charged, and generally powered (akin to within the case of a printer or speaker), by bigger laptop batteries with AC ports.
This text initially appeared on Engadget at https://www.engadget.com/computing/equipment/best-power-bank-143048526.html?src=rss
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