Best Portable Chargers & Power Banks 2025
Expert-tested power banks with real capacity measurements and charging speed benchmarks
A reliable power bank keeps you powered anywhere. We've analyzed expert reviews from Tom's Guide, CNET, and Wirecutter to find power banks with verified capacity and real-world performance.
Our Recommendation
For laptop users, the Anker Prime 27,650mAh offers unmatched 140W charging power. For everyday carry, the Anker Nano 10K's built-in cable makes it perfect. Budget laptop charging? UGREEN's 145W bank delivers premium features at half the price.
Capacity Reality
Actual usable capacity is ~65-70% of rated due to voltage conversion. 10,000mAh = ~3 phone charges.
Airline Limits
TSA allows up to 100Wh (27,000mAh) in carry-on. No power banks in checked luggage.
How We Test Power Banks
Our recommendations focus on real-world usability:
- • Actual Capacity: Real mAh delivered vs. advertised claims
- • Charging Speed: Measured output wattage with various devices
- • Portability: Weight and size for practical carrying
- • Build Quality: Materials, durability, and safety certifications
- • Extra Features: Displays, pass-through charging, multiple ports
Top Picks Compared
Anker Prime 27,650mAh Power Bank (250W)
$179
Best For
Laptop users, power users, multi-device charging
Key Specs
Pros
- + Massive 27,650mAh capacity
- + 140W laptop charging
- + Smart digital display
- + Charges 3 devices simultaneously
Cons
- - Heavy at 1.5 lbs
- - Premium price
- - Large size
Anker Nano Power Bank 10K
$35
Best For
iPhone/Android users, everyday carry, travel
Key Specs
Pros
- + Built-in USB-C cable
- + Compact pocket size
- + 30W fast charging
- + Excellent value
Cons
- - 10,000mAh only
- - Single port
- - No laptop charging
Baseus Blade 2 12,000mAh
$99
Best For
MacBook Air users, ultra-portable needs, sleek aesthetics
Key Specs
Pros
- + Ultra-thin 0.5" profile
- + 65W laptop charging
- + Digital display
- + Premium aluminum build
Cons
- - 12,000mAh only
- - Pricey for capacity
- - Slippery surface
UGREEN 145W Power Bank 25,000mAh
$99
Best For
Budget laptop charging, multi-device users
Key Specs
Pros
- + 145W laptop charging
- + 25,000mAh capacity
- + Excellent price
- + TFT display
Cons
- - Bulkier design
- - Less premium feel
- - Fan noise possible
Zendure SuperMini 10,000mAh
$59
Best For
Outdoor adventures, rough handling, frequent travelers
Key Specs
Pros
- + Credit card-sized
- + Durable construction
- + Fast charging
- + Lightweight
Cons
- - 20W max output
- - 10,000mAh only
- - No display
Quick Comparison
| Model | Capacity | Max Output | Price |
|---|---|---|---|
| Anker Prime | 27,650mAh | 140W | $179 |
| Anker Nano 10K | 10,000mAh | 30W | $35 |
| Baseus Blade 2 | 12,000mAh | 65W | $99 |
| UGREEN 145W | 25,000mAh | 145W | $99 |
| Zendure SuperMini | 10,000mAh | 20W | $59 |
Buying Guide
Capacity Guide
5,000mAh = 1 phone charge. 10,000mAh = 2-3 charges. 20,000mAh+ = laptops and multi-day trips.
Power Output
18-30W for phones. 45-65W for tablets/MacBook Air. 100W+ for gaming laptops and MacBook Pro.
Ports Matter
USB-C is standard. Multiple ports let you charge several devices. Check for PD (Power Delivery) support.
Safety First
Look for UL certification, temperature control, and overcharge protection. Avoid no-name brands.
Bottom Line
For most users, the Anker Nano 10K at $35 is the perfect everyday carry with its built-in cable and fast charging. Laptop users should invest in the Anker Prime or UGREEN 145W for proper high-wattage charging. The Baseus Blade 2 wins for those who prioritize aesthetics and portability over raw capacity.