Realme P4 Power battery life and charging tests are ready - welcome our new champ!

The Realme P4 Power has arrived, and its battery performance is nothing short of remarkable. With a massive 10,001mAh Silicon-Carbon battery, this phone has topped our battery charts with an impressive 25:35 Active Use Score, setting a new benchmark for endurance in the smartphone world.

What makes this achievement particularly noteworthy is how Realme managed to pack such a large battery into a device that doesn't feel like a brick. The P4 Power measures 162.3 x 76.2 x 9.1mm and weighs just 219g - dimensions that are surprisingly standard for a phone with a 6.8" display. This is a significant improvement over previous large-battery phones that often sacrificed ergonomics for capacity.

The battery uses next-generation Silicon-Carbon technology, which Realme claims will retain at least 80% of its original capacity after 1,650 charge cycles - that's roughly 8 years of use. This longevity is particularly impressive given the battery's massive size. Even if you limit charging to between 80% and 95% (which you can do in 5% increments), there's little practical reason to do so - 8 years is a long time, and even at 80% health, a 10,001mAh battery remains substantial.

When compared to other large-battery phones we've tested, the P4 Power's performance is exceptional. While premium phones typically dominate the top of our battery charts, the P4 Power - which isn't positioned as a premium model - has claimed the crown. For context, the current #5 model, the OnePlus 15R with its 7,400mAh battery, costs 70% more than the Realme P4 Power but still falls short with a score of 21:36.

Here's how the P4 Power compares to other large-battery phones in our tests:

Phone	Battery	Active Use Score	Web Browsing	Video Playback	Gaming
Realme P4 Power	10,001mAh	25:35	44:53h	20:06h	31:32h
OnePlus 15R	7,400mAh	21:36	39:47h	20:06h	31:32h
Honor Magic8 Lite	7,500mAh	17:58	34:18h	18:18h	23:31h
Realme 16 Pro+	7,000mAh	18:18	39:47h	21:18h	8:53h
Realme P3 Ultra	6,000mAh	16:47	41:42h	16:12h	19:47h

Even when compared to other 7,000+ mAh models like the Honor Win and OnePlus Turbo 6 (which we haven't tested yet), the P4 Power's lead is substantial. The phone's performance demonstrates how quickly battery technology is evolving - the P4 Power's predecessor, the Realme P3 Ultra, only had a 6,000mAh battery.

Of course, a large battery is only practical with fast charging support, and the P4 Power delivers here as well. It supports 80W SuperVOOC and 55W USB PPS charging. While we used the 80W SuperVOOC charger for our tests, the charging times are surprisingly competitive given the battery's massive capacity.

After 15 minutes of charging, the P4 Power reached 27% - matching the Redmi Note 15 Pro, which has a smaller 6,580mAh battery and slower 45W charging. By the 30-minute mark, the P4 Power hit 45%, which is enough to get through a full day for most users. A full charge takes 79 minutes, which is only 9 minutes longer than the Honor Magic8 Lite (7,500mAh, 66W) and 26 minutes slower than the OnePlus 15R (which, remember, has a 2,600mAh smaller battery).

For those considering the Realme P4 Pro (which costs the same ₹30,000 for an 8/256GB unit on Realme India), the difference is striking. The P4 Pro has a 7,000mAh battery and the same 80W SuperVOOC charging system, but it takes 27 minutes longer to reach 100% charge compared to the P4 Power.

The Realme P4 Power represents a significant milestone in smartphone battery technology. It proves that massive battery capacity doesn't have to come with massive compromises in size, weight, or charging speed. As we continue our full review testing, one thing is already clear: the Realme P4 Power has set a new standard for battery life that other manufacturers will need to match.

The phone goes on sale in India on February 5, and based on these early results, it's likely to be a compelling option for users who prioritize battery life above all else.