Cygnett Boost Gen4S 20k Power Bank Black
CY6059PBCHE
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Product Overview
Key Features
- 20W Charging
- Up to 4.6 phone charges
- Detachable USB-C Cable
- Smart digital display
Key Specifications
- Brand:
- Cygnett
- Model Number:
- CY6059PBCHE
- Wired Connections:
- 2x USB-C & 1x USB-A
- Battery:
- 20000mAh
- Type:
- Powerbank
Phones & Wearables
- Phone Family:
- Universal
General Information
- Family:
- Boost Gen4S
- Colour:
- Black
- Additional Features:
- USB-C1 OUTPUT: PD 5.0V⎓3.0A(15.0W) 9.0V⎓2.22A(20.0W) 12.0V⎓1.67A(20.0W) USB-C2 OUTPUT: 5.0V⎓3.0A(15.0W) 9.0V⎓2.0A(18.0W) 12.0V⎓1.5A(18.0W) USB-A OUTPUT: 5.0V⎓3.0A(15.0W) 9.0V⎓2.0A(18.0W) 12.0V⎓1.5A(18.0W) USB-C INPUT: PD 5.0V⎓3.0A(15.0W) 9.0V⎓2.0A(18.0W)
- What's In The Box:
- Boost 4S 20W Power Bank with USB-C Lanyard Cable 20K, USB-C to USB-C Lanyard Cable, User Manual, Warranty Card
Warranty
- Manufacturer's Warranty:
- 2 Year
Phones & Wearables
- Phone Family:
- Universal
Warranty
- Manufacturer's Warranty:
- 2 Year
Product Dimensions
- Product Height (mm):
- 145.6
- Product Width (mm):
- 71.4
- Product Depth (mm):
- 29.6
- Product Weight (g):
- 430
Box Dimensions
- Box Height (mm):
- 150
- Box Width (mm):
- 105
- Box Depth (mm):
- 33
- Box Weight (kg):
- 0
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Product Reviews of Cygnett Boost Gen4S 20k Power Bank Black
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At a glance
The Cygnett Boost Gen4S 20k Power Bank Black is a portable backup battery for phones, earbuds, wearables and other small USB devices. It suits commuters, travellers and anyone wanting dependable all-day top-ups, with a handy display and included USB-C lanyard cable. Its main limitation is that charging speeds and features are more practical than premium, laptop-focused power banks.
What it’s great for
- Everyday Phone Charging
- Commuting
- Travel Backup Power
- Shared Device Charging
- Emergency Top-Ups
Where it works best
- Daily Commute
- Airport and Flights
- University Campus
- Office
- Day Trips
- In-Car Carry
Who it’s for
- Commuter
- University Student
- Traveller
- Everyday Professional
- Smartphone User
Things to consider
It is well suited to phones, earbuds and small USB devices, but it is less ideal than premium high-wattage power banks for larger devices or faster laptop-class charging.
Fast charging suitability
Good for phones and small USB devices, with up to 20W from USB-C1 for quicker single-device top-ups.
Multi-device compatibility
High - supports phones, wearables, earbuds and small USB devices across USB-C and USB-A connections.
Travel suitability
8/10 - compact to carry, large enough for repeated phone charging, and includes a lanyard-style USB-C cable for convenience.
Durability vs category average
7/10 - designed for everyday portable use and backed by a 2 year warranty, though it is not presented as a rugged specialist model.
Ease of use score
9/10 - straightforward port layout, clear digital battery readout and included USB-C cable make day-to-day use simple.
Key benefits
- 20,000mAh CAPACITY: Delivers substantial backup power for multiple phone top-ups across a full day or trip.
- 20w usb-c1 output: Provides faster single-device charging for compatible phones and accessories.
- Multi-port charging: USB-C1, USB-C2 and USB-A ports let you charge different everyday devices from one power bank.
- Digital battery display: Shows remaining charge clearly so you can plan recharging before heading out.
- Detachable usb-c to usb-c lanyard cable: Adds convenient carry and gives you a cable in the box for newer devices.
- Compact portable design: Fits more easily into a bag, backpack or jacket pocket for everyday carry.
- Broad device support: Suitable for charging phones, wearables, earbuds and other small USB devices.
- 2 year warranty: Offers longer-term peace of mind for regular daily use.
Q: Can this power bank charge a laptop or just smaller devices?
A: No. Cygnett Boost Gen4S 20K is intended for phones, tablets, earbuds and other small USB devices. Its listed 15W charging output suits everyday portable gear, not most laptops, which usually need higher USB-C power.
Q: How many full phone charges can you expect from a full bank?
A: Cygnett Boost Gen4S 20K is listed for up to 5.2 phone charges when charging a phone from 0 to 100%. Actual results depend on the phone's battery size and on whether multiple devices are sharing the power bank.
Q: Does it charge three devices at once or one at fastest speed?
A: Yes. This power bank has 3 charging ports, so it can charge several devices at the same time. Charging speed is usually best with a single device connected, because shared charging spreads the available output across more gear.
Q: What cable comes in the box with the Cygnett Boost Gen4S?
A: Cygnett Boost Gen4S 20K includes a detachable USB-C to USB-C lanyard cable in the box. That suits newer phones and accessories with USB-C, but devices that use a different connector will need their own compatible cable.
Q: Is the display just lights or does it show remaining charge clearly?
A: It has a digital display that shows the remaining power more clearly than basic indicator lights. That makes it easier to judge when the power bank itself needs recharging, especially if you use it across several devices.