Looking for the best compact power bank for travel? The Anker Nano 10000mAh wins as the best overall with its built-in USB-C cable and pocket-friendly design, the Nitecore NB10000 Gen2 takes the ultralight crown at just 150g for minimalist packers, and the Shargeek 170 dominates laptop charging with 170W total output for digital nomads who need serious power on the go.
Who this comparison is for#
- Frequent travelers who need reliable charging without adding bulk to carry-on bags
- Remote workers and digital nomads who split time between cafes, airports, and coworking spaces
- Ultralight packers who obsess over every gram in their daypack or sling bag
- Commuters who run multiple devices through a full day away from outlets
How we picked#
- Capacity sweet spot: All three pack 10,000mAh or more — enough for about two full phone charges without crossing airline carry-on limits
- Weight-to-power ratio: Both 10,000mAh picks stay under 220g, with the lightest at just 150g
- Charging speed: Enough output to put meaningful charge into a phone during short layovers and coffee stops — up to 170W total when a laptop needs feeding
- Build quality: Carbon fiber, recycled hard plastic, metal-accented ports — no cheap shell that cracks in a bag
Anker Nano 10000mAh — Best Overall#
The Anker Nano 10000mAh is the power bank you grab without thinking. It does everything well and nothing badly. The built-in USB-C cable means one less cable rattling around your bag, and at 30W output it charges an iPhone 15-series phone from empty to 50% in about 30 minutes, per Anker's own testing.
What makes it the overall pick is the combination of convenience and reliability. The integrated cable folds flush into the body — no dangling cord, no lost cables at hotel rooms. The second USB-C port lets you charge another device alongside the built-in cable, and a USB-A port covers legacy gear on top of that.
Build quality feels premium for the price. The matte finish resists fingerprints and the compact rectangle slides into a jeans pocket without the awkward bulge you get from cylindrical power banks. At 215g, you barely notice it in a sling bag.
Key Specs#
Capacity : 10,000mAh (36Wh)
Output : 30W max single-port (USB-C); 24W total when charging multiple devices
Built-in Cable : USB-C, folds flush
Weight : 215g (7.58 oz)
Dimensions : 104 x 52.3 x 26mm
Recharge Speed : 30W input, ~1.5 hours to full
Bottom line: The best all-rounder for travelers who want one device that handles phones, earbuds, and tablets without fuss. Read our full Anker Nano 10000mAh review for the deep dive.
Nitecore NB10000 Gen2 — Best Ultralight#
If every gram matters, the Nitecore NB10000 Gen2 is the only serious answer. At 150g it weighs less than most smartphones, yet packs a full 10,000mAh capacity. Ultralight hikers, bikepacking enthusiasts, and minimalist travelers have made this a cult favorite for good reason.
The carbon fiber construction keeps weight down without sacrificing durability. This is a power bank designed for people who throw gear into stuff sacks and summit packs — it handles rough treatment. The slim 10.6mm profile slides into pockets and pouches that would reject bulkier alternatives.
Charging speed hits 20W on the USB-C port, which is modest compared to the other two picks but perfectly adequate for phones and earbuds. The dual-port setup (USB-C + USB-A) covers legacy devices like older headlamps and GPS units — useful for outdoor types who carry mixed-generation gear. A low-current mode handles small devices like wireless earbuds without auto-shutoff issues.
Key Specs#
Capacity : 10,000mAh (38.5Wh)
Output : 20W max (USB-C PD), 18W USB-A
Weight : 150g (5.3 oz)
Dimensions : 121.9 x 59 x 10.6mm
Shell : Carbon fiber sheets over a polymer frame
Special Feature : Low-current mode for earbuds and wearables
Bottom line: The lightest 10,000mAh power bank worth buying. You sacrifice some charging speed for a weight savings that adds up across multi-day trips. Check out our full Nitecore NB10000 Gen2 review for detailed testing.
Shargeek 170 — Best for Laptop Charging#
The Shargeek 170 plays in a different league. While the other two picks handle phones and small devices, this one charges laptops. With 170W total output — up to 140W to a single laptop — and a 24,000mAh capacity, it can top off a MacBook Air from empty or keep a MacBook Pro running for hours during a long flight.
The transparent polycarbonate shell is the first thing anyone notices — you can see the circuit boards, battery cells, and charging circuitry through the case. It looks like a piece of engineering art sitting on a cafe table. The built-in IPS display shows real-time input and output wattage, remaining capacity, and recharge time in exact numbers, not vague LED dots.
Three output ports (two USB-C + one USB-A) handle simultaneous charging for a laptop, phone, and earbuds. The primary USB-C port delivers up to 140W over PD3.1, with 170W available across all three ports at once. At roughly 680g it is noticeably heavier than the other picks, but for the charging capability you get, the weight-to-power ratio is still excellent.
Key Specs#
Capacity : 24,000mAh (86.4Wh)
Output : 170W total (up to 140W on USB-C1), triple-port
Display : IPS screen with real-time power metrics
Weight : 680g (24 oz)
Dimensions : 164.9 x 62.8 x 59.6mm
Airline Approved : Yes — under 100Wh limit
Recharge Speed : 140W max input, 0-50% in 20 minutes (manufacturer figure)
Bottom line: The power bank for people who charge laptops on the go. Heavier and pricier than phone-only options, but nothing else in this size delivers 170W of total output. See our full Shargeek 170 review for the complete breakdown.
Which one should you buy?#
If you want the simplest, most practical power bank for everyday travel, get the Anker Nano 10000mAh. The built-in cable eliminates the most common power bank frustration — forgetting or losing the charging cable — and 30W output is fast enough for any phone on the market. It handles 90% of travel charging needs in a package that fits in a front pocket.
If you are an ultralight packer, hiker, or cyclist where every gram counts, the Nitecore NB10000 Gen2 is the obvious choice. At 150g you will forget it is in your pack. The 20W output is slower for phones, but when your priority is minimizing pack weight across a week-long trip, nothing else comes close to this weight-to-capacity ratio.
If you travel with a laptop and need real power delivery, the Shargeek 170 is your pick. It is the only option here that can meaningfully charge a MacBook or similar USB-C laptop, and the 24,000mAh capacity means you get through a full transcontinental flight without hunting for an outlet. The transparent design and real-time display are bonuses that make the premium worth it for gear enthusiasts.
For most travelers, start with the Anker Nano. Add the Nitecore for backcountry trips, and the Shargeek if your workflow depends on a laptop away from power.
FAQ#
Can I take these power banks on a plane?#
Yes — all three are airline approved. The Anker Nano (36Wh) and Nitecore NB10000 Gen2 (38.5Wh) fall well under the 100Wh carry-on limit. The Shargeek 170 (86.4Wh) also clears the threshold. Most airlines allow power banks up to 100Wh in carry-on luggage without special approval. None of these can go in checked baggage — that is a universal airline rule for lithium batteries.
How many phone charges do I get from 10,000mAh?#
Roughly two full charges for a modern smartphone — Anker's own testing quotes 1.8 charges for an iPhone 15 and 1.9 for an iPhone 15 Pro. The Shargeek 170 at 24,000mAh carries well over twice that capacity, or one full MacBook Air charge plus phone top-ups.
Is 20W charging speed too slow for the Nitecore?#
For phones, no — 20W still fast-charges current iPhones and Android phones, and the real-world gap behind the Anker Nano's 30W is minutes, not deal-breaking. Where 20W becomes limiting is tablets — an iPad charges noticeably slower at 20W compared to 30W. For phones and earbuds, 20W is plenty fast.
Does the Shargeek 170 actually charge a MacBook Pro?#
It charges it, but results depend on the MacBook model. A MacBook Air charges from empty to full. A 14-inch MacBook Pro gets most of a full charge from the 86.4Wh capacity, and a 16-inch MacBook Pro takes a meaningful partial charge. During active use the charge rate slows, but it extends your working time by several hours.
Which power bank has the best build quality?#
The Nitecore NB10000 Gen2 leads with its carbon fiber construction — it is genuinely rugged and built for outdoor use. The Anker Nano's matte casing (80% recycled plastic, per Anker) holds up well in bags. The Shargeek 170 transparent shell is eye-catching but slightly more scratch-prone — a case or sleeve is worth considering if you toss it in with keys and tools.
Can I charge the power bank and my phone at the same time?#
Only the Shargeek 170 supports passthrough charging — plug the power bank into a wall outlet and connect your phone, both charge simultaneously. Anker states its power banks do not support pass-through charging, and the Nitecore NB10000 Gen2 does not officially support it either. For hotel rooms with limited outlets, the Shargeek is the only pick that covers this.