Battery capacity becomes an important feature for smartphone users who are into heavy gaming, streaming and multitasking. Even professional users who might not always get the time to charge their device can find significant value in devices that can last for more than a day without having to charge.
In 2026, several brands have taken things to the next level by launching smartphones with massive batteries of 8,000mAh and above. These devices are designed to last multiple days on a single charge while still offering powerful performance and fast charging. Here’s a look at some of the best smartphones with batteries larger than 8,000mAh.
The Realme Narzo Power stands out as one of the most extreme battery-focused smartphones currently available. It packs a huge 10,001mAh battery and is one of the first ‘Power’ model in the Narzo lineup. The company claims up to 38 days of standby time and more than 2–3 days of usage on a single charge.
Despite the large battery, the phone supports 80W fast charging alongwith bypass charging for gaming and 27W reverse charging allowing it to work as a power bank.
In terms of specs, the device is powered by a MediaTek Dimensity 7400 Ultra octa-core processor and features a 6.8-inch AMOLED display with a 144Hz refresh rate. It comes with a 50MP + 8MP rear camera setup and a 16MP front camera.
The Realme Narzo Power is priced at Rs 27,999 for the 8GB + 128GB variant and Rs 29,999 for the 8GB + 256GB model.
The iQOO Z11 offers a 9,020mAh battery, making it one of the largest batteries available in a mainstream smartphone. It also supports 90W fast charging that ensures that the massive battery can be quickly topped up.
The phone is powered by the MediaTek Dimensity 8500 octa-core chipset and features a 6.83-inch AMOLED display with a 165Hz refresh rate. For photography, it includes a 50MP + 2MP dual rear camera setup and a 16MP front camera.
The iQOO Z11 has been launched in China starting at CNY 2,299 (around Rs 31,500) for the 8GB + 256GB variant with additional configurations including 12GB and 16GB RAM options paired with up to 512GB storage.
The Poco X8 Pro Max 5G is another strong contender in the big battery segment featuring a 9,000mAh battery. It supports 100W fast charging and 27W reverse wired charging. The company claims the device can deliver over three days of usage, more than 18 days of standby time, and around 30 hours of video playback.
Under the hood, the phone runs on the MediaTek Dimensity 9500s processor and sports a 6.83-inch AMOLED display with a 120Hz refresh rate. The camera setup includes a 50MP + 8MP rear system and a 20MP front camera.
The Poco X8 Pro Max is priced at Rs 42,999 for the 12GB + 256GB variant and Rs 46,999 for the 12GB + 512GB model.
The Tecno POVA Curve 2 5G combines a large 8,000mAh battery with a relatively slim and lightweight design. At just 7.42mm thickness and around 195 grams, it is noticeably slimmer than many other big battery phones.
With this battery, users can expect up to 2 days of usage on a single charge, depending on usage patterns. The device supports 45W fast charging, which should fully charge the phone in a reasonable time.
It is powered by the MediaTek Dimensity 7100 processor and features a 6.78-inch AMOLED display with a 144Hz refresh rate. The phone includes a 50MP + 2MP rear camera setup and a 13MP front camera.
The Tecno POVA Curve 2 is priced at Rs 27,999 for the 8GB + 128GB variant and Rs 29,999 for the 8GB + 256GB model.
The OPPO K15 Pro+ is another powerful smartphone with an 8,000mAh battery, paired with 100W SuperVOOC fast charging support for quick recharges.
The device is powered by the MediaTek Dimensity 9500s processor and features a 6.78-inch OLED display with a 165Hz refresh rate. It offers a 50MP + 8MP dual rear camera setup and a 16MP front camera for selfies.
Pricing for the OPPO K15 Pro+ starts at CNY 3,499 (around Rs 47,000) for the 12GB + 256GB variant and goes up to CNY 4,199 (approximately Rs 57,000) for the 12GB + 512GB model.
Answer. Top models include the Realme Narzo Power (10,001mAh), iQOO Z11 (9,020mAh), Poco X8 Pro Max (9,000mAh), Tecno POVA Curve 2 (8,000mAh), and OPPO K15 Pro+ (8,000mAh).
Answer. It packs a 10,001mAh battery, offers up to 38 days standby, supports 80W fast charging, bypass charging for gaming, and 27W reverse charging.
Answer. The iQOO Z11 comes with a 9,020mAh battery and supports 90W fast charging, ensuring quick top-ups despite its large capacity.
Answer. It features a 9,000mAh battery, 100W fast charging, 27W reverse charging, and delivers over three days of usage plus 30 hours of video playback.
Answer. The Tecno POVA Curve 2 5G combines an 8,000mAh battery with a slim 7.42mm profile and lightweight build (~195g), making it more portable than most rivals.
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