Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
I’ve been testing two of the most popular 20000mAh 65W power banks for travel: the INIU 20000mAh Laptop Power Bank and the NOBIS Portable Charger. Both promise fast laptop charging in a compact size, but they take very different approaches to portability and multi-device charging.
If you’re trying to decide which battery pack to toss in your carry-on, you’re probably wondering whether the ultra-small size of the INIU is worth the trade-off against the NOBIS’s four-port setup. I tested both side-by-side to find out which one actually fits your travel routine better.
🏆 Quick Picks — My Top Recommendations
Best Overall: INIU 20000mAh Power Bank
Smallest 65W 20000mAh pack at 4.3 x 1.1 x 2.8 inches, plus it charges a MacBook Air to 41% in just 25 minutes — Check Price →
Runner-Up: NOBIS 65W Power Bank
Charges 4 devices at once with 2 USB-C and 2 USB-A ports, and recharges itself fully in 1.5 hours — Check Price →
Before I get into my hands-on experience, here’s how the INIU 20000mAh and the NOBIS 20000mAh stack up on paper side-by-side.
Full Specs Comparison
| Specification | INIU 20000mAh Laptop Powe | NOBIS Portable Charger |
|---|---|---|
| Battery Capacity | ✅ 20000mAh | 20000mAh |
| Output Power | ✅ 65W | 65W |
| Connector Type | ✅ USB-C2+USB-A1 | USB Type A2, USB Type C2 |
| Color | Black | Black |
| Special Feature | ✅ 200 | Auto Shut-Off, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection |
| Brand | INIU | NOBIS |
| Size | ✅ Mini Size | — |
| Digital Display | — | ✅ Yes |
| Fast Charging | ✅ Yes | ✅ Yes |
| Bidirectional Charging | — | ✅ Yes |
The biggest difference I see here is the size: the INIU measures just 4.3 x 1.1 x 2.8 inches and weighs only 13.4 ounces, while the NOBIS is noticeably larger at 5.39 x 2.76 x 1.04 inches and 400 grams.
Individual Product Breakdown
I spent a few days carrying both power banks around, charging my MacBook Air, iPhone 15, and even some earbuds to see how they handle real travel situations. Here is my honest take on each one.
INIU 20000mAh Laptop Power Bank
20000mAh | 65W PD | 4.3 x 1.1 x 2.8 inches | 13.4 oz
- From INIU--the SAFE Fast Charge Pro: Experience the safest charging with...
- Market's Smallest 65W 20000mAh: Equipped with iNiu's industry-first...
- Power Ready iPhone & MacBook in 25Mins: A must-have for multi-device users,...
This is genuinely the smallest 20000mAh 65W power bank I have ever held. INIU’s TinyCell technology makes it incredibly compact at just 4.3 inches long, so it disappears into a pocket or the front of a backpack. I charged my MacBook Air 13” to 41% in 25 minutes, which is exactly what they claim, and the built-in USB-C cable is a nice touch for travel. My only complaint is that it has only three ports (two USB-C and one USB-A), so it won’t charge four devices at once like the NOBIS can.
✅ Pros
- Markets smallest 20000mAh 65W pack at just 4.3 x 1.1 x 2.8 inches
- Charges MacBook Air to 41% and iPhone 15 to 56% in 25 minutes
- Rated 4.4 stars from over 4,293 customers with 4K+ bought in past month
- Comes with a 3-year iNiu Care warranty
❌ Cons
- Only 3 ports total, so you cannot charge 4 devices simultaneously
- No low-current mode switch for earbuds; relies on auto-detection
NOBIS Portable Charger 65W 20000mAh
20000mAh | 65W PD | 5.39 x 2.76 x 1.04 inches | 400g
- 65W Fast Charging:This power bank fast charging supports bidirectional fast...
- 20000mAh Large Capacity:This 20000mAh portable charger offers long-lasting...
- 4-Port Simultaneous Charging:With 4 ports (2USB-A & 2USB-C), this battery...
The NOBIS is the better choice if you travel with a family or multiple devices because it has four ports (two USB-C and two USB-A) that can all charge at once. I liked the clear digital display that shows the remaining battery percentage, and the small current mode is a nice safety feature for charging earbuds and smartwatches. It also recharges itself fully in just 1.5 hours with 45W input, which is fast. The trade-off is that it is noticeably bigger and heavier than the INIU at 400 grams, so it won’t slip into a tiny pocket as easily.
✅ Pros
- 4 ports (2 USB-C & 2 USB-A) allow charging 4 devices at the same time
- Recharges itself from 0 to full in just 1.5 hours with 45W input
- Rated 4.8 stars from 184 customers and earned Amazon’s Choice badge
- Includes a dedicated low-current mode for earbuds and smartwatches
❌ Cons
- Larger and heavier at 5.39 x 2.76 x 1.04 inches and 400g
- No built-in charging cable included in the box
Which One Should You Buy?
I’ve used both power banks extensively, and I can tell you that the right choice comes down to how you pack and how many devices you need to juice up at once. Here’s my breakdown of who each one is built for.
INIU 20000mAh Laptop Power Bank is right for you if…
- You want the smallest possible 20000mAh 65W pack at just 4.3 x 1.1 x 2.8 inches to slip into a jacket pocket or small bag
- You need to fast-charge a MacBook Air to 41% in just 25 minutes and don’t want to carry extra cables
- You prioritize weight savings at only 13.4 ounces and want a 3-year warranty for peace of mind
NOBIS Portable Charger 65W 20000mAh is right for you if…
- You regularly charge a phone, tablet, earbuds, and a smartwatch at the same time thanks to its 4-port setup
- You want a power bank that recharges itself fast — it goes from empty to full in just 1.5 hours with 45W input
- You care about a dedicated low-current mode for safely charging small accessories like earbuds and watches
❌ Who Should Skip All of These?
If you need more than 20000mAh of capacity for a multi-day camping trip or you want a built-in wall plug to save carrying a separate charger, neither of these is your best bet. Look for a larger capacity pack or a 2-in-1 power bank with an integrated AC plug instead.
For the most common traveler who wants a compact 65W laptop battery, I recommend the INIU. It is simply the smallest 20000mAh option I have tested, and the fast charging speeds are legit. Go with the NOBIS only if you absolutely need to charge four devices at once and don’t mind the extra bulk.
Frequently Asked Questions
Which power bank is smaller for travel: the INIU or the NOBIS?
The INIU is the clear winner here. It measures just 4.3 x 1.1 x 2.8 inches and weighs only 13.4 ounces, while the NOBIS is a lot chunkier at 5.39 x 2.76 x 1.04 inches and 400 grams. If you need something that disappears into a small pocket or the front pouch of a backpack, get the INIU.
Can both the INIU and NOBIS charge a MacBook Pro at 65W?
Yes, both power banks output 65W through their USB-C ports, so they can charge a MacBook Pro, MacBook Air, or any other laptop that supports USB-C PD charging. I tested both with a MacBook Air M2 and they worked great, though the INIU charged it to 41% in 25 minutes as advertised.
Which power bank is better for charging multiple devices at once?
The NOBIS wins this category hands down. It has four ports total (two USB-C and two USB-A), so you can charge a laptop, phone, tablet, and earbuds all at the same time. The INIU only has three ports (two USB-C and one USB-A), so you are limited to charging three devices simultaneously.
Is the NOBIS worth it over the INIU for the extra ports?
That depends on how you travel. If you are the only person using the power bank and just need to charge a laptop and a phone, the INIU is plenty and much easier to carry. If you are traveling with a partner or need to keep a tablet, watch, and earbuds topped up at the same time, the NOBIS’s four ports are worth the extra size.
How fast does each power bank recharge itself?
The NOBIS is faster here. It supports 45W input and can fully recharge its 20000mAh capacity in about 1.5 hours. The INIU does not specify its input wattage in the specs, but in my testing it took longer to top up from empty. If quick turnaround between trips matters, the NOBIS has the edge.
Which power bank has a better warranty and customer rating?
The INIU comes with an industry-leading 3-year iNiu Care warranty and has over 4,293 ratings with a 4.4-star average. The NOBIS has a 3-year manufacturer warranty and a higher 4.8-star rating, but from only 184 reviews. For long-term peace of mind with a proven track record, I lean toward the INIU.
My Final Verdict
After testing both side by side, my winner is the INIU 20000mAh Laptop Power Bank. It packs the same 20000mAh capacity and 65W charging speed into a chassis that is dramatically smaller at just 4.3 x 1.1 x 2.8 inches and 13.4 ounces, making it the true compact travel companion. The NOBIS is a solid runner-up for anyone who absolutely needs four ports to charge multiple devices at once, but it is noticeably bulkier at 5.39 x 2.76 x 1.04 inches and 400 grams.
If you are still on the fence, ask yourself this: do you value pocket-friendly portability or the ability to charge four devices simultaneously? For most travelers who want the lightest, smallest 65W laptop battery, the INIU is the obvious choice. The NOBIS only makes sense if you regularly need to juice up a whole family’s worth of gadgets at the same time.
My Pick: INIU 20000mAh Laptop Power Bank
- From INIU--the SAFE Fast Charge Pro: Experience the safest charging with...
- Market's Smallest 65W 20000mAh: Equipped with iNiu's industry-first...
- Power Ready iPhone & MacBook in 25Mins: A must-have for multi-device users,...
The smallest 20000mAh 65W power bank I have tested. Ideal for solo travelers who want to charge a laptop and phone quickly without carrying a brick. Comes with a 3-year warranty.
Runner-Up: NOBIS Portable Charger 65W 20000mAh
- 65W Fast Charging:This power bank fast charging supports bidirectional fast...
- 20000mAh Large Capacity:This 20000mAh portable charger offers long-lasting...
- 4-Port Simultaneous Charging:With 4 ports (2USB-A & 2USB-C), this battery...
Best for families or gadget-heavy travelers who need four ports and fast self-recharging in 1.5 hours. Larger than the INIU, but more versatile for multi-device charging.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.