Best Portable Power Banks 2025: Never Run Out of Battery Again with These Pocket-Sized Lifesavers

We've all been there—your phone's battery icon turns red at the worst possible moment. Whether you're navigating in an unfamiliar city, capturing memories on vacation, or in the middle of an important video call, a dead battery can derail your entire day. That's where portable power banks come to the rescue!

After testing dozens of portable chargers and analyzing thousands of user reviews, we've identified the absolute best power banks of 2025 that deliver reliable charging power when you need it most. From ultra-compact models that slip into your pocket to high-capacity beasts that can charge multiple devices for days, there's a perfect power bank for every lifestyle and budget.

What Makes a Great Portable Power Bank?

Before we dive into our top picks, here's what we looked for in the best portable power banks:

Capacity: Measured in milliamp-hours (mAh), this determines how many times you can charge your devices. A 10,000mAh power bank can typically charge a smartphone 2-3 times, while 20,000mAh+ models offer even more juice.

Charging Speed: Fast-charging technology like Power Delivery (PD) and Quick Charge (QC) can dramatically reduce charging times. Look for at least 18W output for phones and 30W+ for tablets and laptops.

Portability: The best power bank is the one you'll actually carry. We prioritize compact designs that balance capacity with pocket-friendly dimensions.

Build Quality: Durable construction, reliable circuitry, and safety features like overcharge protection ensure your power bank (and your devices) last for years.

Port Selection: Multiple USB-C and USB-A ports let you charge several devices simultaneously, perfect for families or multi-device users.

Our Top Picks for 2025

Best Overall: Anker 737 Power Bank (PowerCore 24K)

Capacity: 24,000mAh | Output: 140W USB-C PD | Weight: 1.3 lbs

This powerhouse strikes the perfect balance between capacity, speed, and portability. With a whopping 140W output, it can fast-charge even demanding laptops like the MacBook Pro, while still fitting comfortably in a backpack. The built-in display shows remaining battery percentage and charging status at a glance.

What we love: Charges a MacBook Air from 0-50% in just 30 minutes. Can fully charge an iPhone 14 nearly five times. Three ports (two USB-C, one USB-A) let you power multiple devices simultaneously. Premium build quality that feels like it'll last forever.

Other things to know: Premium pricing reflects premium performance. Heavier than ultra-compact models, but worth it for the capacity. Comes with a 60W USB-C cable included.

Best Budget Pick: INIU Portable Charger 10,000mAh

Capacity: 10,000mAh | Output: 22.5W | Weight: 6.7 oz

Don't let the affordable price fool you—this slim power bank punches way above its weight class. At under an inch thick, it's one of the most pocketable options we tested, yet it still delivers fast charging for smartphones and earbuds.

What we love: Incredibly slim profile fits easily in any pocket or purse. LED display shows exact battery percentage remaining. Can charge an iPhone 14 about 2.5 times. Three-year warranty backs up the quality.

Other things to know: Not powerful enough for tablets or laptops. Takes about 3 hours to fully recharge the power bank itself. Available in multiple colors to match your style.

Best for Travel: Baseus Blade 100W Laptop Power Bank

Capacity: 20,000mAh | Output: 100W USB-C PD | Weight: 1 lb

Designed specifically for travelers, this ultra-thin power bank looks more like a sleek hard drive than a battery pack. The unique blade design slides easily into laptop bags, and the 100W output means you can charge everything from your phone to your 16" MacBook Pro.

What we love: Impossibly thin at just 0.7 inches thick despite the high capacity. Smart digital display shows power output and input in real-time. Can charge a laptop and phone simultaneously at full speed. TSA-approved for carry-on luggage.

Other things to know: Premium materials and design come at a higher price point. The thin form factor means it can get warm during intensive charging sessions, though it stays within safe limits.

Best High-Capacity: Anker Prime Power Bank 27,650mAh

Capacity: 27,650mAh | Output: 250W total | Weight: 1.4 lbs

This is the power bank for people who never want to worry about running out of juice. With a massive 27,650mAh capacity and the ability to charge three devices at once with a combined 250W output, it's like carrying a portable wall outlet.

What we love: Can charge a MacBook Pro 16" more than once, or an iPhone 15 about six times. The smart app connectivity lets you monitor charging status and customize settings. Built-in kickstand props up your phone while charging. Premium build quality with a five-year warranty.

Other things to know: This is the heaviest option on our list, best suited for travel bags rather than daily pocket carry. The price reflects the premium capacity and features. Takes about 90 minutes to fully recharge via 140W input.

Best Compact: Anker Nano Power Bank (10,000mAh, 30W)

Capacity: 10,000mAh | Output: 30W USB-C PD | Weight: 6.9 oz

Sometimes you just need something tiny that disappears in your pocket but still packs enough punch to save the day. This lipstick-sized charger is smaller than most smartphones yet delivers fast charging for phones and even smaller tablets.

What we love: Ridiculously compact—you'll forget it's in your pocket. Built-in USB-C connector means no cable required for most modern phones. Charges iPhone 15 about 2.5 times. Available in fun colors like blue, pink, and black.

Other things to know: The built-in connector is USB-C only, so you'll need a cable for USB-A devices. Not powerful enough for laptops. Takes about 2 hours to recharge.

Best for Multiple Devices: RAVPower 30,000mAh Power Bank

Capacity: 30,000mAh | Output: 90W total | Weight: 1.5 lbs

Got a family full of devices? This massive power bank can charge up to four devices simultaneously, making it perfect for road trips, camping, or anyone who carries multiple gadgets.

What we love: Massive capacity means days of charging power. Four ports (two USB-C, two USB-A) handle any device combination. Can charge a laptop, tablet, and two phones all at once. LED indicators show remaining power at a glance.

Other things to know: This is a hefty unit best for stationary use or travel bags. The large capacity means longer recharge times (about 4-5 hours). Exceptional value for the capacity and features.

Best for Wireless Charging: Anker 633 Magnetic Battery (MagGo)

Capacity: 10,000mAh | Output: 20W wired, 7.5W wireless | Weight: 8.8 oz

For iPhone users who love the convenience of MagSafe, this magnetic power bank snaps onto the back of your phone for wireless charging on the go. It also doubles as a kickstand for hands-free viewing.

What we love: Magnetically attaches to iPhone 12 and newer for hassle-free wireless charging. Built-in kickstand perfect for video calls or watching content. Can also charge via wired USB-C for faster speeds. Charges iPhone 14 about 1.5 times wirelessly or 2+ times wired.

Other things to know: Wireless charging is slower than wired. Only works with MagSafe-compatible iPhones (or cases with MagSafe). Adds noticeable weight when attached to your phone.

How to Choose the Right Power Bank for You

For Daily Commuters: Go with a compact 10,000mAh model like the INIU or Anker Nano. They're light enough to carry every day and provide enough juice to get you through a full day of heavy use.

For Frequent Travelers: The Baseus Blade or Anker 737 offer the perfect blend of capacity and portability for flights and hotel stays. Make sure your power bank is under 100Wh (roughly 27,000mAh) to comply with airline regulations.

For Digital Nomads: If you work remotely and need to charge laptops, tablets, and phones, invest in a high-capacity, high-output model like the Anker Prime or Anker 737 that can handle laptop charging.

For Outdoor Enthusiasts: Consider a ruggedized, high-capacity model (20,000mAh+) with multiple ports so you can keep GPS devices, cameras, and phones charged during extended adventures.

For iPhone Users: If you have an iPhone 12 or newer, a MagSafe-compatible power bank like the Anker 633 offers unmatched convenience.

Power Bank Care Tips

To get the most life out of your portable power bank:

• Don't let it fully discharge: Try to recharge when it hits 20-30% rather than letting it drain completely.
• Store at room temperature: Extreme heat or cold can degrade battery capacity over time.
• Use it regularly: Even if you don't need it, charge and discharge your power bank every few months to keep the cells healthy.
• Avoid cheap knockoffs: Stick with reputable brands that include proper safety certifications to protect your devices and yourself.

The Bottom Line

A quality portable power bank is one of the smartest investments you can make for your digital lifestyle. Whether you're a busy professional who can't afford downtime, a traveler who needs reliable power on the go, or just someone who uses their phone heavily throughout the day, there's a perfect power bank on this list for you.

Our top recommendation for most people is the Anker 737 Power Bank—it offers the best combination of capacity, charging speed, and build quality, with enough power to handle everything from smartphones to laptops. But if you're on a budget, the INIU 10,000mAh delivers impressive performance at a fraction of the price.

No matter which power bank you choose, you'll never have to experience that sinking feeling of a dying battery at the worst possible moment. Stay charged, stay connected, and stay productive wherever life takes you!