Description
Price:$32.99 - $26.96
(as of Aug 20, 2026 10:19:02 UTC – Details)
Product description
Pocket-Sized 20000mAh 
Mini or Classic? 
1 Power for Every Journey
2 Break Size Limits
1 22.5W Fast Charge
2 18-Layer SmartProtect
3 Multiple color options
Why my power bank provide fewer charges than expect?
Usually an external battery could supply 60%-70% power to other devices. Approximately 30-40% of the battery capacity is lost in circuit heat and voltage conversions.So a fully charged INIU 20000mAh can offer 12000-14000 mAh to your devices.
How to calculate the possible number of charges?
“Industry-standard formula: (Rated capacity × 65%) ÷ Device battery capacity ≈ Number of Charges.
eg. (20,000mAh Powerbank × 0.65) ÷ 3279mAh iPhone14 battery ≈ 4.0 charges”
How long does it take to 100% recharge?
“It depends on the power of the wall charger used:
20W charger – 5.4 hrs, 15W fast charger – 6.6 hrs.
Note: Please recharge via the USB-C port.”
Why doesn’t it charge at max power all the time?
INIU power banks feature a Smart Temperature Monitoring System that adjusts output to prevent overheating. It delivers max power when your device is low, then reduces power to protect your battery and improve efficiency.
Is it allowed on airplanes?
Yes, our 20000mAh power bank meets the regulations of TSA(Transportation Security Administration) for carring board(≤100wh≈27,027mAh).
Comparison
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Customer Reviews
4.6 out of 5 stars 28,913
4.5 out of 5 stars 2,422
4.3 out of 5 stars 3,828
4.4 out of 5 stars 22,243
4.6 out of 5 stars 24,675
Price
$26.96$26.96
$22.49$22.49
$28.48$28.48
$32.99$32.99
$22.49$22.49
For Phone
≈4 Charges
≈2 Charges
≈4 Charges
≈2 Charges
≈2 Charges
Recharge Time
5.4h
2h
3.9h
≈2 Charges
2h
Cable Included
Detachable USB-C Cable
Built-in USB-C Cable
Built-in USB-C Cable
Detachable USB-C Cable
Detachable USB-C Cable
Battery Level Display
Digital Display
PawPower Display
Digital Display
Digital Display
Digital Display
Size / Weight
4.1 x 2.8 x 1.2in / 11.1oz
4.3 x 2.7 x 0.7in / 6.3oz
4.5 x 2.9 x 1.1in / 11.5oz
4.4*2.7*0.7in / 6.5oz
3.3*2.0*1.0in/ 5.6oz
[POCKET-SIZE 20000mAh.] Massive power for your pocket. Note: True 20,000mAh requires solid, high-density cells (approx. 11 oz). This portable charger is built incredibly dense to deliver 4 full phone charges without the bulk.
[DETACHABLE NYLON LANYARD.] Forget extra cords. The built-in USB-C cable acts as a convenient lanyard. Woven with ultra-durable nylon, it outlasts standard plastic by 3X. (Apple users can easily plug into the extra ports).
[TRUE 22.5W FAST CHARGE.] Stop waiting. Blast your Samsung S25 to 70% or iPhone 16 to 60% in just 25 minutes. Built-in thermal sensors actively dissipate heat, ensuring your device stays safe and cool.
[FLIGHT APPROVED & FLASHLIGHT.] The ultimate travel power bank. Its TSA-approved capacity easily passes airport security. Plus, the built-in flashlight provides instant illumination for power outages, camping, or searching your bag.
[3-YEAR HASSLE-FREE CARE.] Join 38 million+ global users relying on INIU’s SafeCharge tech. Crafted for daily durability. Any quality issues within 3 years? We’ll send a brand-new replacement, zero hassle.
power banks for phones
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