If your phone dies before the day is done, these 20000mAh power banks support hours of extra runtime and every one of them costs less than Rs 1,500. We have rounded up five high-capacity options from Mi, Syska, Redmi, Ambrane and GIONEE, comparing their fast-charging wattage, ports, weight and current discounted prices so you can pick the right backup battery for your gadgets.
Why these 20000mAh power banks support all-day charging
A 20000mAh cell holds enough charge to top up most smartphones multiple times, which is exactly why these 20000mAh power banks support travel, long commutes and full work days away from a wall socket. The five models below all sit under the Rs 1,500 mark after discount, and several add 18-watt fast charging plus Type-C connectivity for quicker refills.
The five power banks compared
Mi 3i 20000mAh Power Bank
This power bank comes with 18-watt fast charging support, and customers get both Type-C and Micro-USB ports; a Type-C cable is included with this model. Using an 18-watt charger and USB cable, it takes 6.9 hours to charge fully. It weighs 434 grams and is being sold for Rs 1,499 (MRP Rs 2,199) after a 31 percent discount.
Syska 20000mAh Power Bank
The Syska model weighs 403 grams and has a micro connector with 2 output ports. It is being sold for Rs 1,299 (MRP Rs 2,999) after a 56 percent discount.
Redmi 20000mAh Power Bank
The Redmi power bank also offers 18-watt fast charging support along with micro and Type-C connectors. It can be purchased at a 30 percent discount for Rs 1,399 (MRP Rs 1,999).
Ambrane 20000mAh Power Bank
The Ambrane unit comes with 10W fast charging support and micro plus Type-C connectors. It weighs 325 grams and, after a 65 percent discount, customers can buy it for Rs 1,299 (MRP Rs 3,799).
GIONEE 20000mAh Power Bank
The GIONEE power bank offers 15W fast charging support, 3 output ports and weighs 412 grams. It has both micro and Type-C connectors and has been made available for Rs 1,099 (MRP Rs 1,999) after a 45 percent discount.
Specifications at a glance
| Specification | Details |
|---|---|
| Mi 3i | 18W fast charging, Type-C and Micro-USB, 434 g, charges in 6.9 hrs, Rs 1,499 (MRP Rs 2,199) |
| Syska | Micro connector, 2 output ports, 403 g, Rs 1,299 (MRP Rs 2,999) |
| Redmi | 18W fast charging, micro and Type-C, Rs 1,399 (MRP Rs 1,999) |
| Ambrane | 10W fast charging, micro and Type-C, 325 g, Rs 1,299 (MRP Rs 3,799) |
| GIONEE | 15W fast charging, 3 output ports, micro and Type-C, 412 g, Rs 1,099 (MRP Rs 1,999) |
All five batteries deliver the same 20000mAh capacity, so your choice comes down to charging speed, the number of ports and how much weight you want to carry. The Mi 3i and Redmi lead on 18-watt fast charging, the GIONEE adds a third output port for charging multiple devices, and the Ambrane is the lightest of the group at 325 grams.
How to pick the right power bank
When deciding between these models, start with charging speed. If you want the quickest refills, the Mi 3i and Redmi both offer 18-watt fast charging, while the GIONEE provides 15W and the Ambrane 10W. Next, consider the ports: the GIONEE has 3 output ports and the Syska has 2, which is useful if you regularly charge more than one device at a time. Weight matters too if you carry the power bank daily, ranging from the lightest Ambrane at 325 grams up to the Mi 3i at 434 grams. Finally, look at the connectors, since the Mi 3i, Redmi, Ambrane and GIONEE all include Type-C alongside micro for newer cables, whereas the Syska sticks to a micro connector. With every option here selling below Rs 1,500 after discount, you can secure a reliable 20000mAh backup without stretching your budget.
