Electronics
NOBIS 20,000mAh 45W Portable Power Bank with Detachable Cable
Product description
Equipped with PD 3.0 and QC 4.0 protocols, this portable charger provides a single USB-C port capable of delivering up to 45W output for fast charging laptops, tablets and phones. That same USB-C port accepts up to 45W input to shorten the time it takes to refill the power bank.
Its 20,000mAh nominal capacity is intended to supply multiple full phone charges, making it suitable for multi-day trips, long commutes, and backup power in emergencies. The unit houses two USB-C ports and two USB-A ports: each USB-C can reach up to 45W when used solo, while the USB-A ports are rated up to 30W individually. Note that when two or more ports are active simultaneously, the power bank shares output and the combined available output is reduced to a shared 20W.
The package includes a removable hook and a detachable dual Type-C lanyard that functions as a charging cable, so you don’t necessarily need to carry a separate lead. A high-precision LED digital display reports the remaining battery as a percentage from 0% to 100% in 1% increments, so you can see exactly how much charge remains and when it needs topping up.
The enclosure is built from a durable polymer shell with a textured finish for grip and everyday wear resistance. Its palm-friendly profile is designed for handheld carry or stashing in a bag; the detachable strap clips on for easy transport and can be removed when you want to stow the cable separately.
To use: connect your device to one of the output ports (USB-C or USB-A) for charging; for fastest results use the main USB-C port. Recharge the bank via its USB-C input at up to 45W to restore capacity more quickly. The hook and lanyard add convenience for hanging or carrying on the move.
Pros
- High 20,000mAh capacity for multiple device charges
- 45W USB-C PD for fast single-port charging and 45W input
- Detachable USB-C lanyard cable and hook for on-the-go convenience
Cons
- Takes a long time to fully recharge the bank
- Can become quite warm while charging
- Total output drops when multiple ports are used at once
VerdictThis NOBIS power bank delivers serious capacity and a usable mix of ports for mobile power needs. The single USB-C port supports up to 45W output (and 45W input for faster recharging), while the built-in detachable Type-C lanyard and removable hook add practical portability. It holds charge well and fast-charges phones and many tablets, though recharging the unit itself takes a while and the unit
Reviews
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Toby Boedeker 5/5
Handy lifeline for an older phone
I use this to keep my aging phone topped up during the day. It works reliably and can deliver a few emergency charges when needed.
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Onyx 5/5
Solid performance with a caveat on recharge heat
After using it for a while, I’m impressed with how well it charges phones and holds its own charge, but it does take a long time to refill. My iPhone charged quickly without heating up, yet the charging brick became very hot while the power bank was topping up. They performed well on a long trip and only dropped to around 40% after multiple phone charges. Worthwhile, but mind where you plug it in while it recharges.
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Camillo 5/5
Fast charging and integrated cable for busy days
With 20,000mAh and up to 45W output, it handles multiple smartphone charges and powers tablets efficiently. The detachable USB-C to USB-C cable tucks neatly into the body and is very convenient for commuters and remote workers.
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Robert S. 5/5
Good overall performance and useful strap cable
This power bank worked well in my tests. The detachable USB-C strap is very practical and I used it to charge a phone, an action camera, headphones and a small fan. Everything charged without issue and the unit recharged fine afterward. A reliable option if you want an integrated cable.
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Jae Wells 5/5
Attached cable makes travel hassle-free
I replaced an old worn-out unit with this one and the always-available attached cable is a game changer — no more hunting for leads. It charges devices rapidly and I carry it in my purse for travel and daily use.
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Mark Adams 5/5
Noticeable improvement over smaller banks
I returned a 10,000mAh unit and upgraded to this 20,000mAh model — the difference is clear. With an attached lightning cable it charged fully quickly. It’s a bit bulkier but the extra capacity is worth it.
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Bobby's Take 5/5
Thoughtful features and clear battery readout
The combination of 20,000mAh capacity and 45W output is very practical: phones charge fast, tablets get a good boost and it can help top up a laptop. The LED percentage display removes guesswork, and the strap that hides a USB-C cable is a standout convenience.
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Alec Carr 5/5
Strong build and long runtime
Quality feels excellent. It holds charge for a long time and recharges devices quickly. Good value for what it offers.
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A. Medero 5/5
Surprisingly capable despite basic packaging
Presentation was minimal and it arrived without a seal, packed in a small bag. The strap-cable looks flashy but I prefer keeping my own leads. There were minor finish marks and a color difference on the USB-C port, but functionally it surprised me: I tested a Chromebook that draws 45W and the bank kept it running as claimed.
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Rookie Decorator 4/5
Heads up: no charging cord included
This power bank doesn’t include a separate charging cord in the box, so keep a fast charging cable handy if you want to top it up quickly.
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Reviewer 5/5
Lanyard cable stops me forgetting a charger
I used to forget cables constantly; the lanyard that doubles as a cord fixed that. Build quality is solid, it has a pleasing two-tone finish, and the weight feels right for a 20,000mAh pack — substantial but still pocketable in a bag.
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