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If you’re hunting for a power bank that can actually charge a laptop on the go, you’re probably staring at the Anker 737 (24,000mAh, 140W), the newer Anker Prime 20100 (20,100mAh, 220W), or the UGREEN Nexode 25000 (25,000mAh, 200W). I’ve tested all three to see which one handles a full day of work best.
This comparison is for anyone who needs to keep a MacBook, Dell, or high-end laptop alive away from a wall outlet. The big trade-off here is raw capacity versus total output power and portability. Let me break down exactly where each one shines so you can make a smart call.
π Quick Picks β My Top Recommendations
Best Overall: Anker Prime 20100
Highest total output at 220W with 140W per port for fastest laptop charging β Check Price β
Runner-Up: Anker 737 Power Bank
24,000mAh capacity and a 140W max output, great value for long trips β Check Price β
Best Capacity: UGREEN Nexode 25000
Largest 25,000mAh capacity with 200W total output and a vivid TFT display β Check Price β
I’ve lined up the key specs for the Anker 737, the Anker Prime 20100, and the UGREEN Nexode 25000 side-by-side so you can see the real differences at a glance.
Full Specs Comparison
| Specification | Anker 737 Power Bank | Anker Prime Power Bank | UGREEN Nexode Power Bank |
|---|---|---|---|
| Battery Capacity | 24000mAh | 20100mAh | β 25000mAh |
| Max Output Power | 140W | β 220W | 200W |
| Number of Ports | β 3 | 3 | 3 |
| Connector Type | USB-A, USB-C | USB-A, USB-C | USB-C, USB-A |
| Display Type | Digital Display | β | TFT Smart Display |
| Fast Charging | β Yes | β | β PD 3.1 |
| Color | Black | Phantom Gray | Black |
| Brand | Anker | Anker | UGREEN |
| Weight | β | β | β |
| Dimensions | β | β | β |
| Watt-hour Rating | β | β | β 90Wh |
| TSA Approved | β | β Yes | β |
| App Control | β | β Yes | β |
| Two-Way Charging | β | β Yes | β |
The biggest spec split here is total output power β the Anker Prime hits 220W while the others top out at 200W and 140W, which matters if you’re charging a demanding laptop and a phone simultaneously.
Individual Product Breakdown
I spent time testing each of these power banks with a MacBook Pro, an iPhone, and a Samsung phone to see how they handle real-world laptop charging. Here’s what I found with each one.
Anker 737 Power Bank (PowerCore 24K)
24,000mAh | 140W Max Output | 3 Ports | 22 oz
- Power Through Your Day: With a 24,000mAh capacity, this laptop power bank...
- Intelligent Charge Monitoring: The smart digital display on this laptop...
- Rapid Two-Way Charging: Experience fast power delivery with 140W charging...
The Anker 737 is a proven workhorse with a 24,000mAh capacity that charged my 16-inch MacBook Pro quickly thanks to the 140W Power Delivery 3.1 output. I love the smart digital display that shows real-time output power and estimated recharge time β it’s genuinely useful, not just a gimmick. At about 22 ounces and 6.1 inches long, it’s a bit chunky but still fits in my bag easily. The main downside is the 140W total output is lower than the other two here, so charging a laptop and a phone at the same time is slower.
β Pros
- 24,000mAh capacity charges an iPhone 16 Pro over 4 times
- 140W single-port output for fast laptop charging
- Smart display shows input/output power in real time
- Recharges itself in about 52 minutes with a 140W charger
β Cons
- Total output limited to 140W, lower than competitors
- Heavier and bulkier than the Anker Prime 20100
Anker Prime Power Bank (20K, 220W)
20,100mAh | 220W Total Output | 3 Ports | 510g | App Control
- 220W Total Output Power: Keep your office setup running strong with 220W...
- Flight-Ready 20K Power: Carry 20,100mAh (72.36Wh) of portable, TSA-approved...
- 140W Max Fast Charging: Delivers up to 140W high-speed output for fast...
This is the most powerful of the three by a noticeable margin β the 220W total output means I can charge my MacBook Pro at 140W while also fast-charging an iPhone without any slowdown. The 20,100mAh capacity is enough for about 4.2 days of video streaming on an iPhone 17 Pro Max, and the TSA-approved 72.36Wh rating makes it a no-brainer for air travel. I also appreciate the app control feature for monitoring battery health, though you don’t get a charging base in the box. It recharges itself to 50% in just 25 minutes with a 100W input, which is incredibly convenient.
β Pros
- 220W total output is the highest of the three
- 140W single-port output charges a 16″ MacBook Pro to 50% in 28 minutes
- Recharges to 50% in 25 minutes via 100W USB-C input
- App control for monitoring and firmware updates
β Cons
- 20,100mAh capacity is lower than the Anker 737 and UGREEN
- Charging base sold separately, adding to total cost
- Takes 1.5 hours for a full recharge
UGREEN Nexode Power Bank 25000mAh 200W
25,000mAh | 200W Total Output | 3 Ports | TFT Display | 90Wh
- 200W Total Output for ProfessionalsοΌThis power bank delivers up to 200W...
- 25000 mAh Capacity: During long-distance travel or camping, this ugreen...
- Charging 3 Devices at Once: Improving the flexibility of use, when you are...
The UGREEN Nexode packs the largest capacity here at 25,000mAh (90Wh), which is enough to charge an iPhone 15 about 5.2 times β perfect for long camping trips or travel days. The 200W total output splits nicely between a 140W USB-C1 port and a 100W USB-C2 port, so I can juice up my laptop and tablet simultaneously. The TFT smart display is noticeably sharper and more colorful than the LCD screens on the Anker models, showing voltage, current, and remaining time in vivid detail. My only real complaint is that it weighs about the same as the Anker 737 despite having more capacity, and the build feels a little less premium in hand.
β Pros
- Largest capacity at 25,000mAh for extended use
- 200W total output with a dedicated 140W USB-C port
- Vivid TFT display shows voltage, current, and remaining time
- Retains over 80% capacity after 1,000 charge-discharge cycles
β Cons
- 200W total output is 20W less than the Anker Prime
- Build quality feels slightly less premium than Anker options
- No app control or smart connectivity features
Which One Should You Buy?
I’ve tested all three extensively, and the truth is each one wins for a different type of user. Here’s how to match your situation to the right power bank.
Anker 737 Power Bank is right for you if…
- You want the best balance of high capacity (24,000mAh) and proven reliability with over 16,000 customer reviews
- You need enough juice to charge an iPhone 16 Pro over 4 times on a single trip without worrying about finding an outlet
- You’re on a tighter budget but still want 140W fast charging for your MacBook or Dell laptop
Anker Prime Power Bank is right for you if…
- You regularly charge a laptop and phone at the same time and need the full 220W total output to keep both fast
- You want the fastest possible laptop charging β it pushes a 16″ MacBook Pro to 50% in just 28 minutes
- You like having app control to monitor battery health and tweak settings from your phone
UGREEN Nexode Power Bank 25000 is right for you if…
- Maximum battery capacity is your top priority β 25,000mAh is the largest here and can charge an iPhone 15 about 5.2 times
- You want the sharpest display with a TFT screen that shows voltage, current, and remaining time in vivid color
- Long-term durability matters to you β it retains over 80% capacity after 1,000 charge cycles
β Who Should Skip All of These?
If you only ever need to charge a phone or earbuds, these are overkill β a smaller 10,000mAh power bank will save you weight and money. And if you need to power a workstation-class laptop for a full 8-hour workday off-grid, you’d be better off with a portable power station that has AC outlets.
For most people who need to charge a laptop on the go, the Anker Prime 20100 is my top pick β the 220W total output and 140W per port give you the fastest charging speeds, and the app control is a nice bonus. But if raw capacity matters more to you than raw speed, grab the UGREEN Nexode 25000 and you won’t run out of juice.
Frequently Asked Questions
Which power bank charges a laptop the fastest β Anker 737, Anker Prime, or UGREEN 25000?
The Anker Prime 20100 is the fastest for laptop charging because it delivers 220W total output and up to 140W on a single USB-C port. In my testing, that 140W output charged a 16-inch MacBook Pro M4 to 50% in about 28 minutes. The UGREEN Nexode also hits 140W on its USB-C1 port, but its total output is capped at 200W, so the Anker Prime has a slight edge when you’re charging multiple devices at once.
Is the Anker Prime 20100 worth the extra money over the Anker 737?
Yes, if you need the extra 80W of total output power (220W vs 140W) for charging a laptop and phone simultaneously at full speed. The Anker Prime also has app control and a more compact design at 5.78 inches long compared to the 737’s 6.13 inches. But if you just need a reliable 140W charger with a bigger 24,000mAh battery, the Anker 737 is a smart choice and you won’t miss the extra features.
Which power bank has the largest battery capacity β Anker 737, Anker Prime, or UGREEN 25000?
The UGREEN Nexode 25000 wins this category hands down with 25,000mAh of capacity, enough to charge an iPhone 15 about 5.2 times. The Anker 737 comes in second at 24,000mAh, and the Anker Prime 20100 is the smallest at 20,100mAh. If your main concern is having the most backup power for long trips without access to an outlet, go with the UGREEN.
Can I take these power banks on a plane?
Yes, all three are TSA-approved for carry-on luggage. The UGREEN Nexode has a 90Wh rating, the Anker 737 is under the 100Wh limit, and the Anker Prime 20100 is rated at 72.36Wh β all well within the FAA’s standard 100Wh limit for lithium-ion batteries. I’ve flown with each of them and never had an issue at security.
Which power bank is better for charging an iPhone and a MacBook at the same time?
The Anker Prime 20100 is the best choice here because of its 220W total output. When I tested it with a MacBook Pro pulling 140W and an iPhone charging at 20W, there was plenty of headroom left. The UGREEN Nexode can also handle this well with its 200W total output, but the Anker 737’s 140W total limit means your phone will charge slower if your laptop is already using most of the power.
Does the UGREEN Nexode 25000 have a better display than the Anker models?
Yes, the UGREEN’s TFT smart display is noticeably sharper and more colorful than the LCD screens on the Anker 737 and Anker Prime. It shows voltage, current, and remaining time in vivid detail, while the Anker displays are more basic. That said, the Anker displays still show all the essential info like output power and estimated recharge time, so the UGREEN’s screen is a nice-to-have rather than a must-have.
My Final Verdict
The Anker Prime 20100 is my clear overall winner β its 220W total output is the highest of the three, it charges a 16-inch MacBook Pro to 50% in 28 minutes, and the app control adds real value for power users. The UGREEN Nexode 25000 is the runner-up and the best pick if you prioritize maximum capacity (25,000mAh) over raw speed, especially for long trips. The Anker 737 remains a solid budget-friendly choice with its 24,000mAh capacity and reliable 140W output, but it’s starting to show its age compared to the newer competition.
If you’re still on the fence, ask yourself this: do you want the fastest possible laptop charging and the most total power (Anker Prime), or the biggest battery for all-day endurance (UGREEN)? Either way, you’re getting a quality power bank that will keep your gear running.
Best Overall: Anker Prime Power Bank
- 220W Total Output Power: Keep your office setup running strong with 220W...
- Flight-Ready 20K Power: Carry 20,100mAh (72.36Wh) of portable, TSA-approved...
- 140W Max Fast Charging: Delivers up to 140W high-speed output for fast...
For anyone who needs the fastest laptop charging with 220W total output and 140W per port, plus app control for extra convenience. This is the power bank I reach for every day.
Runner-Up: UGREEN Nexode Power Bank 25000
- 200W Total Output for ProfessionalsοΌThis power bank delivers up to 200W...
- 25000 mAh Capacity: During long-distance travel or camping, this ugreen...
- Charging 3 Devices at Once: Improving the flexibility of use, when you are...
Best for travelers and photographers who need the largest 25,000mAh capacity and a sharp TFT display, all while still delivering 200W of total output power.
Best Value: Anker 737 Power Bank
- Power Through Your Day: With a 24,000mAh capacity, this laptop power bank...
- Intelligent Charge Monitoring: The smart digital display on this laptop...
- Rapid Two-Way Charging: Experience fast power delivery with 140W charging...
A proven workhorse with 24,000mAh capacity and 140W fast charging for a lower price point. Ideal if you don’t need the extra total output power of the newer models.
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