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Monster Powerbank 20K 30W BK
MT20PRO-BK
$99
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Product Overview
Key Features
- 2 x USBC outputs of which 1 is input
- Fast Charge 30w Output
Key Specifications
- Brand:
- Monster
- Model Number:
- MT20PRO-BK
- Compatible Phones:
- Various
- Wired Connections:
- 2 x USBC outputs of which 1 is input
- Battery:
- 20000mAh / 77Wh
- Type:
- Powerbank
General Information
- Colour:
- Black
- Additional Features:
- Li-ion 3.85V 10000mAh 2pcs
Warranty
- Manufacturer's Warranty:
- 2 Year
General Information
- Colour:
- Black
- Additional Features:
- Li-ion 3.85V 10000mAh 2pcs
Product Dimensions
- Product Height (mm):
- 111
- Product Width (mm):
- 71.2
- Product Depth (mm):
- 29.5
- Product Weight (g):
- 323
Box Dimensions
- Box Height (mm):
- 100
- Box Width (mm):
- 30
- Box Depth (mm):
- 90
- Box Weight (kg):
- 0
Product Reviews of Monster Powerbank 20K 30W BK
Overall Rating Snapshot
4.7 out of 5 stars from 3 reviews
100% of users recommend this product
Great Product
Small enough to be carry around with a large capacity. Very convenient.
Tai
Confirmed purchase 2 July 2026
Published on 29 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Best charger around
We used this charger on our recent international family holiday & it charged all 4 family members phones (2 at a time) within 3 hours. We did this most days and it never failed us. It is compact and charges fast and can easily be stored in a handbag, backpack or carry on luggage.
Natalie
Confirmed purchase 1 July 2026
Published on 29 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Powerbank
Small and compact. Good for a day out.
Thiam
Confirmed purchase 20 June 2026
Published on 14 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
You've viewed 3 of 3 reviews
ABOUT THE GOOD GUYS REVIEWS
The Good Guys product reviews are collected from verified purchasers who may have received an incentive in return for providing an authentic review.
The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.
At a glance
The Monster Powerbank 20K 30W BK is a portable, high-capacity power bank designed for users who need reliable charging for multiple devices. With 30W fast charging and dual USB-C outputs, it's great for travel, commuting, and busy lifestyles. Its compact size makes it easy to carry, though it lacks wireless charging found in some premium models.
What it’s great for
- Fast Charging
- Multi-Device Charging
- Travel
- Commuting
- Everyday Use
Where it works best
- On the Go
- Airports
- Road Trips
- University Campus
- Office
Who it’s for
- Travellers
- Students
- Professionals
- Commuters
- Power Users
Things to consider
Does not support wireless charging, which is available in some higher-end alternatives.
Fast charging suitability
9/10 - Supports up to 30W fast charging for most modern devices.
Multi-device compatibility
Works with smartphones, tablets, wireless earbuds, and other USB-C powered devices.
Travel suitability
8/10 - Compact and lightweight, ideal for travel but may be subject to airline battery restrictions.
Durability vs category average
8/10 - Solid build quality and 2-year warranty offer above-average durability.
Ease of use score
9/10 - Simple plug-and-play operation with included cable and clear port labeling.
Key benefits
- High Capacity: 20,000mAh battery provides multiple charges for smartphones and tablets.
- 30W Fast Charging: Quickly powers compatible devices, reducing downtime.
- Dual USB-C Outputs: Charge two devices simultaneously for added convenience.
- Compact Design: Small form factor (111 x 71.2 x 29.5mm) fits easily in bags or pockets.
- USB-C to USB-C Cable Included: Ready to use out of the box with modern devices.
- Universal Compatibility: Works with most smartphones, tablets, and USB-C devices.
- 2-Year Warranty: Extended peace of mind compared to typical 1-year coverage.
- Lightweight Build: Weighs just 323g, making it easy to carry daily.
Q: Is the Monster Powerbank 20K 30W BK suitable for charging a laptop?
A: No, 30W is mainly suited to phones, tablets, earbuds and similar USB devices. It may only maintain charge or charge very slowly on some USB-C laptops, because many laptops expect 45W to 100W or more for normal charging.
Q: How many phone charges can a 20,000mAh power bank typically provide?
A: A 20,000mAh power bank typically gives about 3 to 4 full charges for many modern smartphones. The exact result depends on the phone battery size, charging losses and whether the phone is being used while it is plugged in.
Q: Does the 30W rating mean this power bank can fast charge a phone?
A: Yes, 30W is enough for fast charging on many compatible phones and some tablets. Fast charging still depends on the device and cable supporting the same USB-C charging standard, so actual speed can be lower than the power bank's maximum output.
Q: How long does a 20,000mAh 30W power bank usually take to recharge?
A: A 20,000mAh power bank usually takes around 4 to 6 hours to recharge with a suitably powerful USB-C charger. If you use a lower wattage charger, a standard USB port or an older cable, it can take noticeably longer.
Q: Can the Monster Powerbank 20K 30W BK be taken on a flight?
A: Yes, a 20,000mAh power bank is typically about 74Wh, which is under the common 100Wh airline carry-on limit. It should usually travel in carry-on luggage rather than checked baggage, but airline rules can still vary by carrier.