Best Power Bank in 2026: Tested & Compared

We tested five of the most popular portable chargers on the market right now — charging laptops, phones, tablets, and everything in between over a six-week period. Here’s what actually performs, what’s worth your money, and what’s marketing hype.

Quick Comparison

Power Bank	Capacity	Max Output	Ports	Price
Anker 737 PowerCore	24,000 mAh	140W	2× USB-C, 1× USB-A	~$110
Anker Nano Power Bank	10,000 mAh	22.5W	1× USB-C, 1× USB-A	~$30
Ugreen 145W	25,000 mAh	145W	2× USB-C, 1× USB-A	~$80
Mophie Powerstation XXL	20,000 mAh	45W	2× USB-C, 1× USB-A	~$70
INIU 20000mAh	20,000 mAh	22.5W	1× USB-C, 2× USB-A	~$26

1. Anker 737 PowerCore (24,000 mAh) — Best for Laptops

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The Anker 737 is built for one thing: keeping a laptop running when you’re nowhere near a wall outlet. Its 24,000 mAh cell delivered roughly 1.4 full charges to a 14-inch MacBook Pro in our testing, and it sustains the full 140W output long enough to actually charge while you work — not just slow the battery drain.

Build quality is solid. The matte plastic shell resists fingerprints, and at 1.3 lbs (632g), it’s portable enough for a backpack but not something you’ll forget is there. The LED display showing exact percentage and estimated time remaining is a surprisingly useful feature — most competitors give you four blinking dots and call it a day.

We pushed it with simultaneous laptop + phone charging. The 737 handled both without breaking a sweat, throttling the secondary port only slightly. Recharging the unit itself took about 1 hour 40 minutes with a 100W+ PD charger, which is fast for this capacity.

What We Liked

• Sustained 140W output actually delivers what it promises
• LED display with real-time percentage and time estimates
• Charges a 14″ MacBook Pro ~1.4 times
• Simultaneous device charging without significant throttling

Could Be Better

• At 1.3 lbs, it’s heavier than most people want for casual carry
• No wireless charging — at this price point, that’s a notable omission
• Only available in black

Verdict

If you regularly work away from a desk and need reliable laptop power, the Anker 737 is the one to get. It’s the most dependable high-output portable charger we tested, and the display makes power management dead simple. At ~$110, it’s not cheap, but it earns its price tag with real performance.

2. Anker Nano Power Bank (10,000 mAh) — Best for EDC (Everyday Carry)

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The Anker Nano Power Bank is the definition of “pocket-friendly.” At roughly the size of a deck of cards (3.0 × 2.1 × 1.0 inches) and weighing just 6.7 oz (190g), it disappears into a pocket or small bag. It uses a built-in USB-C connector that folds flush into the body — no cable needed for charging your phone.

With 10,000 mAh, expect about 2 full charges for most smartphones. The 22.5W max output won’t fast-charge every device at top speed, but it delivered 0–50% charge on an iPhone 15 Pro in roughly 35 minutes in our tests, which is competitive for this form factor. There’s also a USB-A port for charging a second device or using your own cable.

The built-in cable is the standout feature — it eliminates the most annoying part of portable chargers: forgetting your cable. It retracts securely and feels durable enough for daily use. We did 200+ fold/unfold cycles with no visible wear.

What We Liked

• Built-in USB-C cable means zero cable management
• Extremely compact — genuinely pocket-sized
• 22.5W output is respectable for the size
• Under $30 makes it an easy impulse buy

Could Be Better

• 10,000 mAh isn’t enough for power-hungry users or travel days
• Can’t charge a laptop (not designed for it, but worth noting)
• Only one USB-A port — no dual USB-C

Verdict

The best power bank for people who hate carrying extra stuff. It’s the one you’ll actually use every day because it doesn’t feel like you’re carrying anything extra. For most smartphone users, 10,000 mAh is the sweet spot of capacity vs. weight, and the built-in cable eliminates the biggest point of friction.

3. Ugreen 145W Power Bank (25,000 mAh) — Best Value High-Power

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Ugreen’s 145W power bank punches above its weight class. At ~$80, it delivers 25,000 mAh and 145W maximum output — specs that match or beat chargers costing $30–50 more. In practice, it charged our MacBook Pro from 20% to 80% in 57 minutes, just two minutes slower than the Anker 737 (which costs $30 more).

The design is clean and functional. It has a small LED display showing remaining percentage (no time estimate, unlike Anker), and the three ports (2× USB-C, 1× USB-A) cover all the bases. We ran simultaneous charging tests — laptop on one USB-C port, phone on the other, earbuds on USB-A — and the Ugreen maintained expected speeds on all three without overheating.

Build quality is good but not premium. The shell is polycarbonate and feels slightly less refined than Anker’s offering, but it held up fine to six weeks of daily use in a backpack. The weight is 1.2 lbs (545g), which is actually lighter than the Anker 737 despite having slightly more capacity.

What We Liked

• 145W output at a significantly lower price than competitors
• 25,000 mAh capacity — one of the largest we tested
• Lighter than the Anker 737 despite more capacity
• Tripled-device charging without significant throttling

Could Be Better

• LED display shows percentage only — no time estimates
• Build feels slightly less premium than Anker
• Recharging the unit takes ~2 hours (no input faster than 65W)

Verdict

The Ugreen 145W is the smart buy for anyone who needs laptop-grade charging power but doesn’t want to pay the Anker tax. It matches the 737’s real-world performance in almost every meaningful test, costs less, and is lighter. The only real trade-off is the less informative display. For most people, that’s an easy compromise.

4. Mophie Powerstation XXL (20,000 mAh) — Best for Premium Build

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Mophie’s Powerstation XXL prioritizes design and feel over raw specs. The aluminum-and-fabric exterior looks and feels like a premium accessory, not a tech gadget. If you care about what your gear looks like — and plenty of people do — this is the best-looking power bank we tested.

On the performance side, the 20,000 mAh cell delivered 1.2 charges to our MacBook Pro and about 4 full charges to a standard smartphone. The 45W max output is adequate for phones, tablets, and lighter laptops, but it won’t fast-charge a MacBook Pro the way the Anker or Ugreen will. Expect slower charge times — about 40% longer than the 140W options in our MacBook test.

Where the Mophie stands out is convenience. The Priority+ charging feature lets you pass-through charge: plug the Mophie into the wall and your phone into the Mophie, and your phone charges first. This is genuinely useful for overnight charging. The LED indicator is simple (four bars) but clear.

What We Liked

• Premium aluminum-and-fabric build quality
• Priority+ pass-through charging is genuinely useful
• Clean, minimalist design that looks good on a desk
• 20,000 mAh is a solid middle-ground capacity

Could Be Better

• 45W max output is weak compared to competitors in the same price range
• Heavier than expected at 1.1 lbs for only 20,000 mAh
• Four-bar LED is less informative than digital displays

Verdict

The Mophie Powerstation XXL is for people who value design and build quality over raw performance numbers. If your primary devices are phones and tablets, the 45W output is perfectly fine. But if you need to charge a laptop, you’re better off with the Ugreen 145W (which costs less) or the Anker 737. The Mophie is the power bank you buy because you like how it looks and feels — and there’s nothing wrong with that.

5. INIU 20000mAh Power Bank — Best Budget Option

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At under $30, the INIU 20,000 mAh power bank delivers more capacity per dollar than anything else we tested. It’s not the fastest, the lightest, or the best-looking — but it works reliably and holds its claimed capacity, which is more than some budget competitors can say.

The 22.5W max output charged our test iPhone from 0–50% in about 38 minutes, which is par for this output level. What matters more is consistency: the INIU maintained this speed across multiple charge cycles without noticeable degradation over our testing period. Three ports (1× USB-C, 2× USB-A) give you flexibility, though you won’t want to run all three simultaneously — speeds drop noticeably with three devices connected.

The build is straightforward plastic with a matte finish. It’s not going to win design awards, but the textured surface provides decent grip and the unit feels sturdy. The built-in flashlight is a small but practical touch for travel or emergencies. At 12.1 oz (343g), it’s easy enough to toss in a bag without thinking about it.

What We Liked

• 20,000 mAh at under $30 is unmatched value
• Consistent performance over multiple charge cycles
• Three ports provide good flexibility
• Built-in flashlight is a nice practical touch

Could Be Better

• 22.5W output can’t compete with premium options
• Speed drops significantly with three devices connected
• Plastic build feels budget (because it is)

Verdict

The INIU is the power bank you buy when you need something that works and don’t want to think about it. It’s the spare you keep in your bag, the one you lend to friends, the one that lives in your car. It does exactly what a power bank should do — store energy and deliver it to your devices — without unnecessary features or premium pricing. For most people with typical phone-charging needs, this is all you need.

Buying Guide: How to Choose the Right Power Bank

Capacity: How Much Do You Actually Need?

Power bank capacity is measured in milliampere-hours (mAh), but don’t get hung up on the raw number — you need to account for energy loss during charging. A 10,000 mAh power bank delivers roughly 6,000–7,000 mAh of actual charge to your device due to voltage conversion and heat loss.

10,000 mAh: 2–3 phone charges. Ideal for daily carry, short trips, and anyone who just wants to top off their phone.

20,000 mAh: 4–5 phone charges or 1–1.5 laptop charges. The sweet spot for travel and all-day use. Most airlines allow up to 27,000 mAh (100Wh) in carry-on luggage.

24,000+ mAh: 5–7 phone charges or 1.5–2 laptop charges. For long-haul travel, camping, or heavy laptop users who are away from outlets all day.

Output (Wattage): Speed Matters

Wattage determines how fast your devices charge. Match the output to your device’s maximum input:

18–22.5W: Good for phones. Fast-charges most iPhones and Androids.

45–65W: Charges tablets and lighter laptops (MacBook Air, Dell XPS 13).

100–140W: Fast-charges most laptops including MacBook Pro 14″/16″. Required if you want to charge and use your laptop simultaneously.

Ports and Simultaneous Charging

More ports = more flexibility, but pay attention to total output. Many power banks advertise high wattage on a single port but throttle significantly when multiple devices are connected. The Ugreen and Anker 737 were the best in our tests at maintaining speed across multiple devices.

USB-C is the universal standard now. If a power bank doesn’t have USB-C, skip it — it’s outdated. Ideally, look for at least two USB-C ports for maximum flexibility.

Weight vs. Capacity

This is the fundamental trade-off. A 10,000 mAh bank weighs 6–8 oz. A 25,000 mAh bank weighs 18–22 oz. There’s no way around physics. If you’re carrying it in your pocket daily, stay under 10,000 mAh. If it lives in a bag, go bigger.

Airline Regulations

Most airlines cap power banks at 27,000 mAh (100Wh) for carry-on. Anything above that requires airline approval. All five banks in this review are well within the limit. Never put a lithium-ion battery in checked luggage.

Frequently Asked Questions

How long does a power bank last before it needs replacing?

Most quality lithium-ion power banks retain 80% of their capacity after 300–500 full charge cycles. With regular use (2–3 cycles per week), expect 2–3 years before noticeable degradation. INIU and Anker both offer 18-month warranties; Mophie offers 2 years. After about 3 years of heavy use, capacity typically drops to 60–70% of original — at that point, replacement makes sense.

Can I bring a power bank on a plane?

Yes. Power banks under 27,000 mAh (100Wh) are allowed in carry-on luggage on virtually all commercial airlines. They are not allowed in checked baggage due to fire risk. All five power banks reviewed here comply with airline regulations. If you’re traveling internationally, check the specific airline’s policy, but the 27,000 mAh limit is an industry standard (per IATA guidelines).

Is it bad to leave a power bank plugged in overnight?

Modern power banks from reputable brands (Anker, Ugreen, Mophie, INIU) have built-in overcharge protection that stops charging when the battery is full. Leaving them plugged in overnight won’t damage them or create a safety risk. That said, there’s no benefit to leaving them plugged in at 100% for extended periods — for maximum longevity, store at 40–60% charge if you won’t use it for weeks.

Why doesn’t my power bank charge my laptop at full speed?

Several factors can limit charging speed: using a cable that doesn’t support the required wattage (you need a 100W-rated USB-C cable for 100W output), connecting to the wrong port (some power banks have one high-output and one low-output USB-C port), or exceeding the power bank’s simultaneous output limit (some banks share total wattage across ports). Always use the cable that came with your power bank or a certified 100W+ cable for best results.

What’s the difference between mAh and Wh?

Milliampere-hours (mAh) measures charge capacity, while watt-hours (Wh) measures actual energy. Wh is calculated as: Wh = (mAh × voltage) ÷ 1000. A 20,000 mAh power bank at 3.7V = 74Wh. Watt-hours matter for airline regulations (the 100Wh limit) and for comparing actual energy across different voltage batteries. When comparing power banks, Wh is the more accurate metric.

Final Thoughts

After six weeks of testing across real-world scenarios — commuting, air travel, camping, desk work, and emergency charging — our recommendations are clear:

For laptop users: Get the Ugreen 145W if you want the best value, or the Anker 737 if you want the best display and don’t mind paying more. Both deliver genuine laptop-charging performance.

For everyday phone charging: The Anker Nano Power Bank is the one you’ll actually carry every day. Its built-in cable and ultra-compact size make it the most practical option for most people.

For budget-conscious buyers: The INIU 20,000 mAh gives you serious capacity at an absurdly low price. It won’t break any speed records, but it’ll keep your devices charged reliably.

For design-conscious buyers: The Mophie Powerstation XXL looks and feels like a premium product. Just know you’re paying partly for aesthetics — the specs don’t quite match its price.

The power bank market in 2026 is more competitive than ever, which is good news for consumers. Even the cheapest option on this list (INIU at ~$26) delivers reliable, safe performance. The main question isn’t “which one works?” — they all do. It’s “which one fits your specific needs?” Match the capacity to your devices, match the output to your charging speed expectations, and don’t pay for specs you won’t use.