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Realme’s 10,001mAh Phone Promises Days of Battery Life

Originally published on: January 20, 2026
▼ Summary

– Realme is launching the P4 Power smartphone in India on January 29th, featuring a massive 10,001mAh battery.
– The company claims the phone will last for three and a half days of light use, a claim supported by the author’s experience with a similar device.
– A key feature is its 27W reverse charging, which is fast enough to effectively use the phone as a power bank for other devices.
– Despite the large battery, the phone remains relatively slim and lightweight at 218g due to its silicon-carbon battery technology.
– While not the absolute largest battery available, the P4 Power’s India release makes it more accessible globally than a comparable China-only model.

The upcoming launch of the Realme P4 Power in India marks a significant step for smartphone battery technology, bringing a massive 10,001mAh capacity to a device that remains surprisingly portable. This move follows earlier concept reveals from the company and directly addresses the universal demand for phones that can last for days on a single charge. Realme claims the device will deliver approximately three and a half days of use under typical conditions, a figure that seems plausible given the performance of other phones with large batteries.

Beyond its impressive endurance, the P4 Power introduces a highly practical feature: 27W reverse charging. This capability is fast enough to allow the phone to function effectively as a portable power bank, capable of quickly topping up other devices like earbuds or smartwatches. This transforms the phone from merely a long-lasting gadget into a versatile power hub for your entire tech ecosystem.

What makes this battery size particularly noteworthy is its integration into a relatively slim and lightweight body. The P4 Power achieves its 10,001mAh capacity while weighing just 218 grams, a feat made possible by employing a silicon-carbon battery design. While the recently announced Honor Power 2 in China is slightly lighter and thinner with a marginally larger battery, its regional availability makes the Realme model a more accessible option for a global audience. The design includes what Realme terms a “TransView Design” on the top panel, though the specific functional or aesthetic advantage of this feature remains unclear from the initial announcement.

For users frustrated by daily charging routines, the P4 Power represents a compelling alternative. The combination of extreme battery life, useful reverse charging, and a manageable form factor could set a new benchmark for what consumers expect from their mobile devices, prioritizing uninterrupted usability over incremental spec upgrades in other areas.

(Source: The Verge)

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