Realme P4 Power Battery Test: The Phone That Simply Refuses to Die

Alright, let’s cut right to the chase. We’ve all been there: scrambling for a charger by mid-afternoon, hunting for outlets in coffee shops, or watching our phone’s battery percentage drop with a sense of mild panic. What if I told you a phone exists that could not only end that anxiety for days on end but could also rescue your other dying gadgets? Enter the Realme P4 Power. This isn’t just another phone launch; it’s a declaration of war on battery anxiety. And after putting it through a grueling deep dive, I can confirm: the future of battery life is here, and it’s ridiculous.

The Big Claim: India’s First 10,001 mAh Smartphone

Realme isn’t playing subtle with the “Power” moniker. At the heart of this device is a massive, almost comically large, 10,001 mAh battery—a first for the Indian market. It’s a number that makes you do a double-take. But specs on a box are one thing. Real-world endurance is another. So, we switched off the battery-saver modes, cranked up the brightness, and used it like we would any other phone. The results? Frankly, they’re mind-bending.

 The Deep Dive: How Long Does It Really Last?

We started our torture test at 5:30 AM with a full 100% charge. Through a heavy day of video streaming, GPS navigation, social media scrolling, and camera use, the P4 Power just… kept going. And going. And going. We clocked a staggering 18 hours of Screen-On Time (SOT) before it finally gasped down to 2%. That’s not “light usage.” That’s an entire waking day spent actively using the phone.

In a separate standby test overnight, it dropped a mere 1% over 10 hours. Let that sink in. Most phones lose that much juice just sitting idle for an hour. For real-world translation? If you’re a moderate user, you’re looking at a jaw-dropping 3 to 5 days between charges. Yes, you read that right. Days. Not hours.

Charging This Beast: Surprisingly Swift

You’d think filling a 10,001 mAh tank would take forever. Remarkably, it doesn’t. Realme includes an 80W SUPERVOOC adapter in the box (a relief in this era of chargers sold separately). It powers up to 50% in just 47 minutes and reaches a full 100% in about 1 hour and 45 minutes. Considering the capacity, that’s seriously impressive. It means you can plug in during your morning routine and have enough juice for nearly two days.

 The Game-Changer: World’s Highest 27W Reverse Charging

Here’s where the Realme P4 Power shifts from “incredibly long-lasting phone” to “portable power station.” Its party trick is 27W reverse wired charging—the highest capacity currently available on any smartphone. We tested it by plugging in a nearly dead iPhone. The results were startling:

· The iPhone charged to 21% in just 30 minutes.

· It hit the 50% mark in 1 hour and 15 minutes.

Now for the real kicker: after donating 50% of its life to the iPhone, the Realme P4 Power itself still had 72% battery remaining. That’s enough leftover power for another day and a half of its own use. It effectively doubles as the most reliable, high-capacity power bank you’ll ever own.

Highlights at a Glance

India’s first smartphone with a 10,001 mAh battery

Up to 18 hours of Screen On Time in a single stretch

Only 1% battery drain over 10 hours of standby

Real-world backup of 3 to 5 days

An 80W fast charger is included in the box.

50% charge in 47 minutes

27W reverse wired charging—the highest in a smartphone

Charged another phone to 50% and still had 72% battery left.

Realme P4 Power Verdict: Who Is This Powerhouse For?

The Realme P4 Power is a marvel of battery engineering. It’s not just about having the biggest number; it’s about delivering genuine, life-altering freedom from the charger. It’s the ultimate device for power users, travelers, outdoor enthusiasts, or anyone who simply never wants to worry about battery life again. The reverse charging capability is the cherry on top, making it a true team player in your tech ecosystem.

Is it for everyone? If you prioritize a featherweight design or the absolute top-tier camera, you might look elsewhere. But if your number one priority is a phone that simply will not die, then look no further. The Realme P4 Power isn’t just a phone; it’s a power revolution in your pocket. And after this test, I’m convinced: battery anxiety just became optional.