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Amazon is running power banks at up to 65% off during the Great Freedom Sale. We have also got some good deals this year and we have tried to pull together the regular selling price for the main ones, so you can see which cuts are worth acting on and which are about what these cost anyway.
One thing about the capacity numbers first. You never get the full rated figure out of a power bank. Converting cells to USB output costs you roughly a third,, so a 10,000mAh brick puts about 6500mAh into your phone. That is one and a half charges on a typical 5,000mAh handset, not two. Output wattage matters more than most people expect, because a big battery at 10W is something you stop bothering to carry.
| Power bank | Sale price | Usually around | Lowest seen | Verdict |
|---|---|---|---|---|
| Xiaomi Power Bank 4i 20000mAh 33W | ₹1,999 | ₹2,060 | ₹1,579 (Oct 2025) | Genuine drop |
| Xiaomi Power Bank 5i 20000mAh 67W | ₹3,299 | ₹3,299 | — | No discount |
| boAt EnergyShroom 10000mAh MagSafe | ₹1,399 | ₹1,498 | ₹1,049 (Sep 2025) | Small drop |
| URBN 10000mAh MagSafe | ₹1,399 | ₹1,389 | ₹999 | About normal |
| boAt EnergyShroom PB100 10000mAh | ₹699 | ₹699 | — | Not in the sale |
Xiaomi Power Bank 4i 20000mAh 33W – ₹1,999
The pick of this lot. It usually sits around ₹2,060, dipped to ₹1,579 last October, and has spent most of the past year between ₹1,900 and ₹2,300. At ₹1,999 you are buying slightly under the running price rather than at some once-a-year floor, but 20,000mAh at 33W for under two thousand is a fair deal on any day.
The catch is weight. This is a bag power bank. If you were hoping to pocket it, look at a 10000mAh instead.
Xiaomi Power Bank 5i 20000mAh 67W — ₹3,299
No major discount on this one. It launched on 28 July at ₹3,299 as an introductory price against a ₹3,499 regular price, and the sale has not moved it. Still a good buy if you need what it does, and the bank offers are where your saving comes from here.
It is the one to get if you are keeping a laptop alive. 67W covers most thin and light notebooks, there is a cable built in, and 20,000mAh will do a phone three times over.
boAt EnergyShroom 10000mAh MagSafe — ₹1,399
Down from ₹1,699 this morning. Its six-month average is ₹1,498, and it went as low as ₹1,049 last September, so ₹1,399 is fine rather than exciting.
Honestly, the magnetic snap is more useful than it sounds once you have used one on a train. On an Android without a magnetic case you are paying for hardware you cannot use, and there are better options further down.
URBN 10000mAh MagSafe — ₹1,399
Same price, same story. This one averages ₹1,389, so no major discount here either. It is a solid pocket power bank and the card offer does the work on the final number.
The cheap ones nobody advertises
boAt plain 10,000mAh models, the PB100 and PB150, sit at ₹699 and ₹799 without any sale attached. No wireless charging, no magnets, no 65W. For a spare that lives in a bag and gets used twice a month, they do the job for half the price of anything above.
Worth checking those before you buy a discounted one.
Where we would put the money
Upgrading from nothing and want one power bank that covers most situations, the Xiaomi 4i at ₹1,999.
Carrying a laptop, the 5i at ₹3,299, sale or no sale.
Just want a backup in a bag, a ₹699 PB100, and skip the sale entirely.
The 10% HDFC card discount stacks on all of these, which is the saving that does move the final number. Prices move around during a sale, so check the listing before you tap buy.
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