Compact power banks
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Anker Nano A1653
See price and availability (58)
A pocket 5,000 mAh power bank that plugs straight into the phone: a folding built-in USB-C connector, 22.5W, and barely 3.5 ounces on the scale.
- Capacity: 5,000 mAh (18 Wh)
- Power: 22.5W max (USB-C)
- Connectivity: Folding built-in USB-C plug + USB-C port
- Weight: 3.5 oz (100 g)
- Clips onto the phone, no cable needed
The Anker Nano (model A1653) is a mini power bank built around one idea: skip the cable entirely. Its folding USB-C connector flips out and clips right onto the phone, while a second USB-C port lets you charge a second gadget or top up the pack itself. It puts out up to 22.5W, enough to give a phone a meaningful charge fast, and at 3.5 ounces in an ultra-compact block it disappears into a jacket pocket. The shell leans on recycled plastic, and four LED dots show the remaining charge at a glance.
This tiny block earns a permanent spot in a coat pocket for one reason: it plugs straight into the phone with no cable to lose. Flip the connector out, clip it onto an iPhone or a USB-C Android phone, and charging starts immediately. At 3.5 ounces you genuinely forget it is there until the phone needs it, and the 5,000 mAh gives a solid single top-up, more than enough to rescue a dying phone before dinner. The 22.5W output is a real step up from the 12W chargers of a few years ago, our test phone gained close to 50% in under 30 minutes. The second USB-C port is a nice extra for earbuds or a smartwatch. Two honest notes from Amazon reviewers: 5,000 mAh is one recharge, not two, and the folding connector sticks out a bit once clipped on, so it is not something you would use one-handed on a crowded train. For an always-there, cable-free emergency top-up, it is hard to beat.
Anker Zolo 10000 (30W)
See price and availability (56)
A 10,000 mAh pocket charger with its USB-C cable already attached: 30W fast charging and a display that shows the exact percentage left, no cord required.
- Capacity: 10,000 mAh (37 Wh)
- Power: 30W max (USB-C Power Delivery)
- Ports: Built-in USB-C cable + USB-C port
- Format: Compact, fits a front pocket
- Built-in 30W cable, no cord to pack or lose
Sold on Amazon.com as the Anker Power Bank 10,000 mAh 30W (the same Zolo model Anker sells under different naming across markets), this pocket charger keeps things simple: a USB-C cable is molded right into the case, so there is nothing extra to pack. It puts out up to 30W, enough to take a modern iPhone to roughly 50% in about 27 minutes, and a second USB-C port lets you top up earbuds or a watch at the same time. At 10,000 mAh it holds about two phone charges, small enough for a front pocket.
In-depth reviewRead our full review →
4.2/5
We carried this one clipped to a backpack strap for a few weeks, and it earns its keep by being genuinely easy to grab and forget about. The built-in USB-C cable is the whole pitch, and it delivers: no hunting through a bag for a loose cord, just unfold the tail and plug in. At 30W it visibly beats cheaper 12-18W packs, an iPhone climbs past the halfway mark in under 30 minutes on a lunch break. The second USB-C port is handy for a pair of earbuds while the phone charges on the built-in cable. Two honest notes: recharging the pack itself tops out at 20W, so budget a couple of hours for a full refill, and 10,000 mAh is a two-charge reserve, not a weekend-away pack. Reviewers on Amazon are split on long-term durability past the first year, which is worth knowing going in. For the asking price, it is hard to beat as an everyday, no-cord-needed backup.
Anker 533 PowerCore 30W
$35.99 (41)
A compact 10,000mAh power bank with a built-in color screen and 30W USB-C PD charging, able to power up to 3 devices at once with no fixed cable.
- Capacity: 10,000mAh (37Wh)
- Power: 30W max (USB-C PD, PowerIQ 3.0)
- Ports: 1x USB-A + 2x USB-C
- Screen: Color, percentage and time remaining
- Color screen, 3 devices at once, replaceable cable
The Anker 533 PowerCore keeps things simple with three separate ports rather than a built-in cable: one USB-A and two USB-C ports let you charge up to three devices at the same time, with up to 30W of USB-C Power Delivery and PowerIQ 3.0. A color screen shows the remaining percentage and charging time in real time, a level of precision rarely seen at this size. With 10,000mAh (37Wh) on board, it covers roughly two smartphone charges in a compact 91 x 48 x 25mm shell.
This pack spent several weeks in a work bag during a stretch of business travel, and it settled straight into the inside pocket. Its three ports (one USB-A, two USB-C) let you charge a phone and earbuds at the same time with no single connector to juggle, and the color screen showing the exact percentage plus time remaining is far easier to read than the usual four-dot LED strip. On a recent iPhone, you get back about half a charge in a short thirty minutes thanks to the 30W output, enough to cover a meeting without a second thought. Its 10,000mAh give roughly two smartphone charges, a fair reserve for a busy day. The one gripe, also flagged by other owners: recharging the pack itself can be inconsistent, anywhere from two to five hours depending on the charger used. The included USB-C cable, not built in this time, at least has the advantage of being replaceable if it ever wears out. For a reliable, versatile pocket pack, it remains a safe pick.
Elecom Nestout 15000mAh
See price and availability (24)
Elecom's Nestout 15000mAh combines IP67 waterproofing, a military-grade shockproof shell and 32W USB-C fast charging, so it never lets you down in the outdoors.
- Capacity: 15000 mAh (approx. 54 Wh)
- Power: 32W (USB-C PD + 2x USB-A)
- Waterproofing: IP67 (1m/30min immersion)
- Durability: Shockproof shell, MIL-STD-810G military standard
- Waterproof, shockproof shell with fast USB-C charging
The Elecom Nestout 15000mAh is a power bank built for the outdoors: IP67-certified (waterproof and dustproof, survives immersion up to 1m for 30 minutes), it also resists shocks thanks to its silicone-wrapped casing, tested to the US military MIL-STD-810G standard. It charges fast through its USB-C Power Delivery port, rated up to 32W, backed by two USB-A ports for up to three devices at once. Its smart power allocation automatically sends more current to the devices that need it. It ships with a standard 1/4 20-inch tripod mount and works with the modular Nestout accessories (light, solar panel), sold separately.
The Nestout has been coming along on our trips for several weeks now, and its toughness convinces quickly: the silicone casing shrugs off drops, and rain or dust in the backpack stop being a worry. USB-C charging is genuinely fast, a smartphone regains most of its battery in about half an hour, and the two USB-A ports let you help out a travel companion at the same time. Its unusual shape, inspired by a vintage fuel canister, is surprising at first but sits well in a pack. Customer reviews broadly confirm this: 80% five-star, with durability and charging speed praised most often. The most common complaint concerns the accessory ecosystem (light, solar panel), which some users find underwhelming, and a few reviews report inconsistent reliability after dozens of cycles. For demanding outdoor use, where waterproofing and shock resistance matter more than sheer lightness, the Nestout remains a solid pick.
Anker MagGo Apple Watch 10000
See price and availability (23)
It wirelessly charges the Apple Watch, and the iPhone, iPad or AirPods through its built-in USB-C cable, up to 35W combined in one compact case.
- Capacity: 10,000mAh (37Wh)
- Charging: USB-C cable 30W + Apple Watch charger 5W
- Compatibility: Apple Watch, iPhone, Samsung, iPad, AirPods
- Weight: 245g, compact design
- Built-in Apple Watch charger and 35W USB-C cable
The Anker MagGo Apple Watch 10000 is a power bank built around the Apple ecosystem. It packs a certified, magnetic wireless Apple Watch charger up to 5W, plus a USB-C cable built into the case that recharges an iPhone, iPad or AirPods up to 30W. Unlike induction power banks, here the cable charges the phone, while wireless is reserved for the watch. With 10,000mAh (37Wh), it delivers about two iPhone charges and up to eleven Apple Watch charges, in a case as compact as a computer mouse.
We tested this Anker MagGo on a city break with an iPhone 16 and an Apple Watch Series 9, and the pairing works really well. The watch sits on the small magnetic puck, which tilts up to keep the face readable like a bedside alarm clock, handy for still wearing it overnight and tracking sleep without being tied to a wall outlet. For the iPhone, no surprise: the built-in USB-C cable does the job, and it charges fast, with no digging through a bag for a lost cord. The digital display, showing percentage and current wattage, is a genuinely nice touch day to day. Two honest downsides: there is no wireless charging for the phone at all, everything goes through the cable, and like other users we noticed a small amount of drain when the watch charger sits idle with nothing on it for several days. Nothing dramatic in daily use, but worth watching if you store it for a while. For an Apple Watch owner, it remains one of the rare banks that genuinely handles both worlds well.
DeWalt Power Bank 10000 (18W)
See price and availability (17)
DEWALT's tough-as-nails power bank: IP67 dust and splash resistant, 10000mAh capacity and 18W fast charging built to survive a full day on site.
- Capacity: 10000mAh (37Wh)
- Output: 18W max (USB-C PD + USB-A QC)
- Water/dust resistance: IP67 (dust and water)
- Weight: 218g
- Indestructible IP67 shell with kevlar USB-C cable included
DEWALT brings its jobsite toughness to this 10000mAh power bank, rated IP67 against dust and water splashes when the port cover is closed. With a USB-C Power Delivery port and a Quick Charge USB-A port (18W max), it charges phones and tablets fast, and ships with a kevlar-reinforced cable. The built-in carabiner clip and rubberised shell make it a reliable companion on site, on the trail or on the road, even if its charging speed stays modest.
Straight out of the box, this DEWALT power bank makes an impression: thick rubber shell, the brand's signature black and yellow, and a sturdy carabiner clip that hooks onto a tool belt without any fuss. It clearly feels built to live in a jobsite bag rather than a phone pocket. The included kevlar-reinforced USB-C cable is a genuine bonus, no more forgetting the charger. In daily use, the promised two to three phone top-ups hold up reasonably well, though refilling the bank itself takes a while, expect close to 3 hours for a full charge. The LED level indicators are handy but a bit dim in direct sunlight. On site and on the trail, it shrugged off dust and an unexpected downpour without a hitch. This is clearly not the fastest power bank on the market, but if the priority is never being caught out by a drop or a shower, it delivers.
Xiaomi Mi Power Bank 3
See price and availability (9)
10,000 mAh and 22.5W fast charging in an ultra-compact body under $24.37: the Xiaomi Mi Power Bank 3 is the best-value top-up power bank.
- Capacity: 10,000 mAh
- Power: 22.5W max (fast charging)
- Ports: 2 USB-A + 1 USB-C (bidirectional)
- Design: Ultra-compact, about 200 g
- 22.5W and 3 ports in a mini body, at a low price
The Xiaomi Mi Power Bank 3 (Ultra Compact) is a 10,000 mAh power bank in a small body, designed for everyday top-ups. It delivers up to 22.5W fast charging and has 3 ports (2 USB-A and 1 bidirectional USB-C), enough to charge two devices at once. Its USB-C port also recharges it. Compact, sturdy with a tidy finish and offered at a low price, it charges a smartphone about twice. A dependable choice for everyday top-ups.
The Xiaomi Mi Power Bank 3 is a bit of the default power bank, the one you recommend without a second thought for everyday use. For under $24.37 it offers 10,000 mAh in a pocketable body, and its 22.5W fast charging tops up a smartphone far faster than old entry-level banks. We like its 3 ports, which let you plug in two devices at once, and the bidirectional USB-C port that also recharges it. The body is well finished for the price. In real use, it fills a smartphone about twice, enough for a weekend. The downsides are minor: no precise display, and power suited to phones and small devices, not laptops. But for reliable, affordable top-ups, it is hard to do better.
Nitecore NB10000
See price and availability (9)
Ultralight (150 g) and clad in carbon fibre, the Nitecore NB10000 offers 10,000 mAh that shrug off water and knocks, ideal for hiking.
- Capacity: 10,000 mAh
- Power: USB-C 20 W, USB-A 18 W
- Weight: 150 g
- Durability: Carbon fibre, IPX5, 1.5 m drop
- 150 g carbon fibre, rugged, water-resistant and flight-ready
At just 150 g for 10,000 mAh, the Nitecore NB10000 is one of the lightest power banks on the market. Its carbon fibre body makes it ultra-rugged (1.5 m drop, IPX5 water resistance) without adding weight. It offers a USB-C 20 W port and a USB-A 18 W port usable at the same time, plus a low-power mode for small devices. Ultra-thin (10.6 mm) and flight-ready, it is built for hiking, trail running, bikepacking and light travel.
We took the Nitecore NB10000 hiking and travelling, and its knockout argument is the weight: 150 g, you literally forget it in the bag. For anyone counting grams on a trek or bikepacking trip, it is a real game-changer, especially as the 10,000 mAh capacity is plenty to last several days with a phone. The carbon fibre body inspires confidence: after a few knocks and a downpour, it looks brand new, and the woven finish is gorgeous. When charging, the 20 W over USB-C top up a smartphone at a good pace, and being able to plug in two devices at once is handy. The low-power mode is clever for charging a watch or earbuds without the battery cutting out. Two honest reservations: the power stays moderate (not enough to charge a big laptop at full speed), and the ultra-thin format, very pleasant, makes it a little slippery. But for a light, tough, reliable outdoor power bank, the NB10000 remains a hard-to-beat benchmark.
Nitecore Pocket 10000
See price and availability (8)
10,000 mAh and a built-in USB-C cable in 12.5 mm of thickness: the carbon-fiber Nitecore Pocket 10000 slips in anywhere, for just 160 g.
- Capacity: 10,000 mAh (38.5 Wh)
- Output: USB-C 22.5 W + built-in cable 20 W
- Form: 12.5 mm thick, 160 g
- Toughness: IP65, carbon fibre
- Built-in USB-C cable, ultra-slim, flight-ready
The Nitecore Pocket 10000 is a slim, light 10,000 mAh power bank built for travel and everyday use. Its woven carbon-fiber shell is just 12.5 mm thick for 160 g, and packs a built-in USB-C cable alongside a USB-C port. You can charge two devices at once, up to 22.5 W, and recharge the bank while powering a device thanks to pass-through. IP65 rated, it resists dust and splashes. A low-current mode nurses earbuds and watches, and four LEDs show the remaining level.
In-depth reviewRead our full review →
4.0/5
The Pocket 10000 pulls off a neat feat: fitting 10,000 mAh and a built-in USB-C cable into a 12.5 mm body barely bigger than a card, for 160 g. The woven carbon fibre is gorgeous and reassuring, and the idea of a cable tucked into the edge is excellent: no more hunting for a cord, you unfold it and plug in. The 22.5 W is enough to recharge a smartphone at a good pace, and you can power two devices at once through the cable and the USB-C port. The IP65 rating reassures in the rain, and the low-current mode is perfect for earbuds. Two honest reservations: the power stays tuned for smartphones and tablets, not for charging a laptop at full speed, and the price can climb depending on the seller, so it pays to compare. But for a slim, elegant and genuinely well-thought-out pocket bank, it is among the best.
Baseus FC11 10000 (45W)
See price and availability (7)
Two USB-C cables already attached to the case, 45 W of fast charging and four devices powered at once, in a format that fits in a pocket.
- Capacity: 10,000 mAh (37 Wh)
- Power: 45 W max (USB-C Power Delivery)
- Ports: 2 built-in USB-C cables + USB-C + USB-A
- Weight: 203 g
- Four devices at once, with no cable to carry
The Baseus FC11 takes the built-in cable idea one step further: it carries two of them, both USB-C, alongside a spare USB-C port and a USB-A port. That means four devices running at once without pulling a single cord out of your bag. Its 45 W is enough to charge a phone at full speed, and even to slow the drain on an ultraportable laptop. At 10,000 mAh (37 Wh) for 203 g, it stays well below the 100 Wh cabin limit.
Two cables instead of one sounds like a footnote on paper, yet it changes how the pack gets used. At a desk or on the move, you plug in the phone and the speaker without opening the cable pouch, and the second cord earns its place far more often than expected: helping out a colleague, running a camera while the phone charges. The 45 W is clearly felt against 20 W models: half an hour takes a recent phone back past the halfway mark, and a thin laptop stops losing charge once connected. The 30 W input is the second strong point, often overlooked at this price: the pack refills over a meal rather than overnight. Two fair reservations: 203 g makes itself known in a shirt pocket, and real-world output lands around two phone charges, not three. Baseus deserves credit for saying so itself.
Nitecore Carbon 6K
See price and availability (6)
88 g, IP68 and a carbon-fiber shell: the Nitecore Carbon 6K is an ultra-portable 6000 mAh power bank that also extends Nitecore 6K headlamps.
- Capacity: 6000 mAh (21.6 Wh)
- Output: USB-C 10 W (5V/2A)
- Weight: 88 g (carbon fibre)
- Water resistance: IP68 (2 m submersible)
- Ultralight, waterproof, 6K headlamp extender
The Nitecore Carbon 6K is an ultralight 6000 mAh power bank built for the outdoors and everyday carry. Its carbon-fiber shell keeps it to 88 g while making it tough, with an IP68 rating (submersible to 2 m). It recharges a smartphone, a watch or earbuds over its USB-C port (10 W), and also acts as a backup battery to extend the runtime of Nitecore 6K-series headlamps. A rear red safety light and a record energy density round off this concentrate of portability.
The Carbon 6K is a product apart: it is not the most powerful power bank, but it is one of the lightest and toughest we have handled. At 88 g for 6000 mAh, in a woven carbon-fiber shell, it disappears at the bottom of a trail pack or a pocket. The IP68 rating, which allows submersion to 2 meters, makes it at home in the rain, on a kayak or in a cave. We like its dual function: on top of topping up a phone or a watch over USB-C, it extends the runtime of Nitecore 6K headlamps on long night outings. Two honest reservations: the 10 W output is modest, this is a backup battery rather than a fast charger, and like any cell of this type, the usable capacity is below the advertised 6000 mAh (real-world useful energy is closer to 3500-4000 mAh at 5 V). But for pure lightness and toughness, it is hard to beat.
Xiaomi Ultra Slim 5000
$24.36 (4)
Ten millimetres thick and 93 grams: a power bank the size of a bank card that slips into a back pocket without you feeling it.
- Capacity: 5,000 mAh (19.4 Wh)
- Format: 113 x 53 x 10 mm, 93 g
- Power: 20W max, bidirectional USB-C
- Recharging: 18W, about 1 h 45
- 10 mm thick, the footprint of a bank card
The Xiaomi Ultra Slim 5000 pushes back against ever-bigger power banks: 113 x 53 mm, 10 mm thick and 93 g, barely more than a smartphone lying flat. Its single USB-C port is bidirectional and delivers up to 20W, enough to bring an iPhone back to half charge in about half an hour. Its 5000 mAh (19.4 Wh) are not aimed at a weekend off-grid but at a day's insurance: one full phone charge, without ever weighing down a pocket. The USB-C cable is included and it refills itself in 105 minutes at 18W.
You have to hold it to understand the point. At 10 mm and 93 g, the Ultra Slim slides into a shirt pocket, into a backpack sleeve, even into a slightly generous card holder, where a 10,000 mAh pack forces you to open the bag. It is an object you carry without thinking about it, and that is exactly the use it targets. The 20W USB-C port does the job on a phone: half an hour brings an iPhone back to roughly half charge, which comfortably covers the end of an evening or a journey. The port is bidirectional, so one cable both empties and refills it, and that cable is in the box, which is no longer a given. The limits are deliberate and worth knowing before buying. Its 5000 mAh give one phone charge, one, not two: this is not a travel battery, it is a safety net for the day. The single port rules out charging two devices at once, and with no display you rely on four indicator lights. Finally, 20W is modest next to the 45 or 65W of thicker models. But none of those models disappears into a pocket, and that is the whole point.
Sunslice Gravity 5
$33.77 (1)
At just 125 grams for 5000mAh, the Sunslice Gravity 5 slips into any pocket to top up your smartphone while hiking or travelling light.
- Capacity: 5000mAh, or 18.5Wh
- Weight: 125g (98 x 64 x 14 mm)
- Output: 2x USB-A, 10W combined
- Input: USB-C or Micro-USB, 10W
- Ultra-light (125g), works with Sunslice solar panels
The Gravity 5 is the most compact power bank in the Sunslice Gravity range: 125 grams for 5000mAh, enough for a near-full recharge on most smartphones. Its two USB-A ports deliver up to 10W combined so you can charge one or two devices at once, while the USB-C or Micro-USB input lets you recharge it with whichever cable you already carry. Built for hiking and light travel, it can also be topped up with Sunslice's foldable Fusion Flex solar panels.
We slipped the Gravity 5 into a jacket pocket for a weekend in the city and genuinely forgot it was there, it's that light: 125 grams, barely more than a small pack of tissues. It gave our phone a near-full charge in one go without ever getting warm. A nice touch: it recharges over either USB-C or Micro-USB, handy when travelling with friends who don't carry the same cable. The real catch is that both USB-A ports share just 10W combined, so don't expect Power Delivery speeds, and there's no pass-through charging while it's topping itself up. For a discreet backup battery to toss in a handbag or a travel pouch, it does exactly what's asked of it, nothing more. Keep it as a top-up companion rather than an emergency fast charger.
Related questions
5,000 mAh is enough to bring a modern smartphone back up by around 80 per cent, which covers a normal day out. If you shoot video, browse heavily or tether, aim for 10,000 mAh instead, which gives almost two usable charges while staying under 200 grams.
A 5,000 mAh unit delivers roughly 3,500 mAh once conversion losses are taken out. That is a full charge for an iPhone 15 (3,349 mAh), but only 75 per cent for a Pro Max (4,441 mAh). To guarantee a full charge whatever the phone, step up to 10,000 mAh.
Reckon on 100 to 130 grams for a 5,000 mAh and 180 to 230 grams for a 10,000 mAh. Energy density tops out around 250 Wh per kilo on lithium-polymer cells, so a model that is markedly lighter for the same capacity is almost always quoting an optimistic figure.
Yes, and this is where it matters most. A compact pack empties quickly, so the speed at which it transfers its energy decides whether you recover 40 per cent in fifteen minutes or in forty-five. A 20 to 30 watt USB-C PD port is the right level in this format.
If you travel light, yes: the folding mains plug removes both the wall charger and the input cable from your bag. In exchange these models are thicker and often capped at 5,000 or 10,000 mAh. Check that the plug also works as a direct charger for your devices, not all of them do.
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