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ElectronicsXiaomi Power Bank 4i 20000mAh 33W Super Fast Charging with PD (Blue)
Xiaomi Power Bank 4i Blue front view

Xiaomi

Xiaomi Power Bank 4i 20000mAh 33W Super Fast Charging with PD (Blue)

4.2(15,400 reviews)
84

Smart Score

Excellent

₹1,899₹3,999
Save 53%
Buy on Amazon
  • 33W super-fast two-way USB Type-C charging — charges devices and itself rapidly
  • 20,000mAh massive capacity — 3-4 full smartphone charges on a single charge
  • 12-layer advanced chip protection against overcharge, overheat, and short circuit
  • PD 3.0 protocol support for universal Android, iOS, and tablet compatibility
  • Triple output ports — 1x USB-C + 2x USB-A for simultaneous multi-device charging
  • Lithium polymer cells retain 80% capacity after 300 charge cycles
  • Soft-touch matte finish — fingerprint-resistant and pocket-friendly
  • LED battery indicator for real-time charge level monitoring
Price and availability confirmed on Amazon at checkout. Full Of Deals may earn a commission.

AI Summary

Best 20,000mAh power bank under ₹2,000 in India. The 33W two-way fast charging is a genuine game-changer — charges your phone as fast as a wall charger and recharges itself quickly too. Triple output is perfect for charging multiple devices on the go. Xiaomi's 12-layer protection and 300-cycle longevity make it a safe, long-lasting investment. Slightly heavier than 10,000mAh alternatives, but the capacity justifies the weight.

Pros

  • 33W fast charging matches wall charger speed — no more slow trickle charging
  • 20,000mAh capacity covers a full weekend trip without needing a wall outlet
  • Triple output lets you charge phone, earbuds, and watch simultaneously
  • 12-layer protection makes overnight charging safe and worry-free
  • 53% discount — exceptional value under ₹2,000 for this capacity and speed
  • 15,400+ reviews with 4.2 rating confirms real-world reliability

Cons

  • Weight (~400g) is noticeable — heavier than 10,000mAh alternatives
  • Takes ~3.5 hours to fully recharge the power bank itself at 33W
  • No wireless charging pad — wired connections only
  • Blue color option only — limited color choices

Full Specifications

Capacity20,000mAh / 74Wh
InputUSB Type-C, 33W PD
Output (USB-C)33W PD 3.0
Output (USB-A)22.5W (x2)
Charging Time (Self)~3.5 hours at 33W
Protection12-layer Chip Protection
Battery TypeLithium Polymer
Cycle Life300+ cycles at 80% capacity
Weight~400g
ColorBlue

Customer Reviews

4.2/ 5

15,400 verified reviews

5
4
3
2
1
Verified Purchase

Exceeded expectations

Matches the description exactly. Build quality feels premium and setup was painless.

— Jordan K.

Verified Purchase

Great value

Does everything I need. Docked one star only because the included accessories are basic.

— Sam R.

Would buy again

Second one I've purchased as a gift. Consistent quality across both units.

— Alex T.

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