Charmast 20000mAh Power Bank w
Description
Price: EUR38.73 - EUR26.76
(as of Jul 11, 2026 06:04:45 UTC – Details)
Product Description
1 Wide Compatibility
2 Charing 6 Devices
3 Several Inputs
Why your power bank seems to drain quickly than expected?
Power banks lose energy during charging due to heat and voltage conversion, typically supplying 60%-70% of their power to other devices. Therefore, a fully charged Charmast 20,000mAh power bank can deliver about 12,000-14,000mAh to your devices.
Can this power bank be taken on airplanes?
Carry-on allowed. Do not pack in checked baggage.
Does it work with small devices?
Yes. Enable low-current mode for headphones, watches, etc.
Is it normal for the portable charger and phone to get warm while charging?
Yes. Some warmth is normal during charging and use due to energy conversion. If temperatures exceed 45°C (113°F), stop use immediately.
Is it compatible with laptops?
No. Use a 30W+ laptop charger instead.
Charmast power bank with built in cables similar recomendenation
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Customer Reviews
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
4.4 out of 5 stars 4,589
Price
EUR 26.76EUR26.76
EUR 27.54EUR27.54
EUR 30.51EUR30.51
EUR 28.98EUR28.98
EUR 28.99EUR28.99
EUR 25.93EUR25.93
EUR 28.16EUR28.16
Maximum Out
22.5W
22.5W
22.5W
22.5W
22.5W
22.5W
22.5W
Outputs
6
6
6
6
6
6
6
Inputs
4
4
4
4
4
4
4
Weight
340g/11.99oz
340g/11.99oz
340g/11.99oz
340g/11.99oz
340g/11.99oz
340g/11.99oz
340g/11.99oz
Dimension
15.35*7.3*2.17cm
15.35*7.3*2.17cm
15.35*7.3*2.17cm
15.35*7.3*2.17cm
15.35*7.3*2.17cm
15.35*7.3*2.17cm
15.35*7.3*2.17cm
Recharge to 100% (USB C Cable)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
Recharge to 100% (USB A Cable)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
~8h (by 5V Power adapter)
Recharge to 100% (USB C Port)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
Recharge to 100% (Micro USB)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
~6h (by 12V/9V Power adapter)
【All-in-One Power Bank: 4 Built-in Cables + 4 Ports】Stop carrying loose cables! This power bank has 4 fixed cables (USB-C, for iPhone, Micro-USB, USB A) and 4 extra ports (USB-C, Micro USB , 2x USB-A) to charge up to 6 devices at once. It’s the ultimate cable-free solution for families, travel buddies, or anyone with multiple gadgets. The built-in USB-A cable even recharges the power bank itself—just plug it into a wall adapter.
【22.5W Super-Fast Charging: Power Up in Minutes】 Get back to 50% battery in about 30 minutes for most modern phones. The built-in USB-C and for iPhone cables support 20W PD/QC fast charging, while the USB-A port delivers up to 22.5W for compatible Android devices. Perfect for quick top-ups between meetings, during layovers, or in any time-sensitive situation.
【20000mAh Travel-Ready Power: Lasts for Days】With enough capacity to fully charge an iPhone 15 up to 4 times, this power bank is your all-day power companion. It’s friendly for air travel and reliable for camping, long commutes, or power outages. Never ration your battery life again.
【Smart Digital Display: Always Know Your Exact Battery Life】Plan your day with confidence. The precise LED screen shows remaining power down to 1%, so you’ll never be caught off guard by a dead power bank. It’s smarter and more accurate than traditional 4-dot indicators.
【Designed for Real Life: Slim, Durable & Ultra-Convenient】We designed it for the real world: The sleek, pocket-friendly profile fits easily in bags; the built-in cables are sturdy and tangle-free; and the included travel pouch adds extra protection. Everything you need is in one box—power bank, manual, and pouch—ready to simplify your charging chaos.
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