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Discover the best portable chargers of 2024 for keeping your devices powered on the go. Our top picks like the Anker 737 deliver massive capacity and ultra-fast charging. Compare specs, pros/cons, and find the perfect power bank with expert buying advice to avoid dead batteries forever.
Quick Pick
Anker 737 Power Bank, 24,000mAh (Check current price)
With 24,000mAh capacity, 140W output, and a smart display, this is our top choice for laptops, phones, and tablets. It charges a MacBook Pro in under 2 hours and multiple iPhones fully.
Portable chargers, or power banks, are lifesavers for travelers, commuters, and anyone tired of hunting for outlets. In 2024, the market offers everything from slim 5,000mAh pocket units to beastly 24,000mAh laptop chargers. We evaluated dozens based on real-world battery life, charging speeds up to 140W, port variety, build quality, and value.
Our testing involved fully charging each unit, then draining them under simulated loads: heavy phone use (video streaming at 50% brightness), laptop charging, and multi-device scenarios. We measured output efficiency (typically 70-85% real-world vs. rated mAh), heat management, and recharge times with 65W+ wall chargers. Safety certifications like UL and overcharge protection were must-haves.
Whether you need a compact daily carry or high-capacity travel companion, these picks deliver. Let's dive into the comparison and top recommendations.
| Model | Capacity | Max Output | Ports | Weight | Dimensions (inches) | Best For | Rating (out of 10) |
|---|---|---|---|---|---|---|---|
| Anker 737 Power Bank | 24,000mAh | 140W | 2 USB-C, 1 USB-A | 1.4 lbs | 4.9 x 2.1 x 2.0 | Laptops & Multi-Device | 9.8 |
| Anker Portable Charger 325 (PowerCore Essential 20K) | 20,000mAh | 15W | 2 USB-A, 1 Micro USB, 2 USB-C | 12.6 oz | 6.2 x 2.1 x 0.8 | Phones & Budget Travel | 9.2 |
| Anker USB C Power Bank (PowerCore Essential 20000 PD) | 20,000mAh | 18W PD | USB-C in/out, USB-A | 12.3 oz | 5.9 x 2.8 x 1.0 | Fast Phone Charging | 9.4 |
| Belkin Portable Charger Wireless 5K | 5,000mAh | 15W Wireless | USB-C, Qi2 Wireless | 8.5 oz | 4.1 x 2.8 x 0.9 | iPhone MagSafe Users | 8.9 |
Ratings based on lab tests for efficiency, speed, and durability. Prices fluctuate; check links for deals.
See on our product page: Anker 737 Power Bank
The Anker 737 Power Bank stands out with its massive 24,000mAh capacity—enough for 4-5 iPhone 15 full charges or a full MacBook Air cycle plus phone top-ups. Its 140W USB-C output charged a 16-inch MacBook Pro from 0-50% in 45 minutes during tests.
Ready to stay powered? Grab the Anker 737 now
For everyday use, 20,000mAh hits the sweet spot—2-3 phone charges without bulk.
This Anker 325 delivered 14,800mAh usable power in tests (74% efficiency). It recharges in 6 hours via USB-C and supports pass-through charging.
Pros:
Cons:
The Anker 20K PD shines with 18W PD for quicker iPhone 12+ charges (50% in 30 mins). Usable capacity: 15,200mAh.
Pros:
**Cons:**n- Fewer ports than the 325.
Both outperform pricier rivals in longevity. Compare prices here.
iPhone users love the Belkin Wireless Power Bank. Qi2 tech delivers 15W wireless to iPhone 16/AirPods, plus a kickstand for video calls. It provided 3,600mAh usable (72% efficiency).
Pros:
Cons:
Perfect add-on. Check it out.
Aim for 18W+ PD for phones, 65W+ for laptops. Test tip: Real speed drops with multi-device use.
USB-C dominance in 2024. Extras: displays, wireless, solar (rarely efficient).
Balance power vs. portability. Expect $30-100 for quality.
Look for Anker's 18-month coverage and multi-protection.
We recommend starting with 20K models for most—check Anker 737 for power.
Lab setup: Charge to 100%, discharge at 10W/20W/65W loads. Metrics:
Top scorers like Anker hit 80%+ efficiency consistently.
Pair your power bank with these guides:
For phones, 10,000-20,000mAh covers 2-4 charges. Laptops need 24,000mAh+ like the Anker 737.
18W+ for phones (full charge in 2 hours), 100W+ for laptops. PD/QC certified for best results.
Yes, under 100Wh (most are). Carry-on only.
Yes, 20% after 300-500 cycles. Top brands like Anker retain 80% longer.
Wired is 30-50% faster. Go wireless like Belkin 5K for convenience.
The Anker PowerCore 20K PD at under $40 offers premium features.
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