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| The Honor X80 Pro Max with a 11000mAh battery |
As phone batteries enter the 10,000mAh era, the accessory that once saved our smartphones is facing extinction. Here's why.
Remember the panic of watching your phone battery dip below 10% while you're miles from an outlet? That anxiety fueled a multi-billion dollar industry built on portable power. But if a new rumor from China's most reliable leaker holds true, the power bank as we know it could be heading for the graveyard of obsolete tech.
According to Digital Chat Station, Honor has reportedly put a massive 12,000mAh (rated 11,790mAh/43.86Wh) phone battery into trial production. This behemoth of a cell is suspected to be featured on the upcoming Honor Power 3, or perhaps the more mainstream Honor X series. Check out the original leak on Weibo here.
It's the kind of headline that makes you do a double-take. A 12,000mAh battery is larger than what you'll find in many flagship power banks currently on the market. And with phone batteries only getting bigger, it's worth asking the dumb but real question: at what point does your phone battery become the power bank you can make calls with?
Anker Saw This Coming
Anker, the company practically synonymous with portable power, seems to have sensed which way the wind was blowing. At the company's 2025 shareholders meeting, founder Steven Yang reportedly made a striking admission: power banks could go the way of the dodo.
The numbers back up his concern. According to a report from 36kr, power banks made up over 70% of Anker's revenue back in 2017. Read the full 36kr analysis here. By 2025, that share had fallen below 12%. That's not a slow decline—that's a cliff dive.
Anker has been quietly derisking into other product lines for years, and now we know exactly why. The writing wasn't just on the wall; it was in the quarterly earnings reports.
The Silicon-Carbon Revolution
So what changed? The answer lies in battery chemistry, not just bigger phone chassis. The shift can be traced back to the Honor Magic5 Pro, the first phone to feature a silicon-carbon battery. This breakthrough chemistry let manufacturers pack far more capacity into the same volume, solving the perennial problem of battery life vs. phone thickness.
Since then, competitors have piled into the battery capacity race. 2026 marked the first entries into the 10,000mAh era, with the Honor WIN and WIN RT being the first phones to reach that line. ITHome covered this milestone in detail.
Consider what a 12,000mAh phone battery actually means in real-world usage:
- Two days of heavy use on a single charge, easily
- Four days or more of light usage
- 27W fast charging output to other devices
- Enough power to charge a friend's phone from zero to full twice over
A phone with these specs doesn't need a power bank. It is the power bank.
The Power Bank Paradox
There's something poetic about this moment in tech history. The power bank—an accessory born from the inadequacy of smartphone batteries—is now being killed by the very thing it was designed to save.
The market is responding accordingly. We're seeing a shift away from standalone power banks and toward:
- Phones with massive batteries that can reverse-charge other devices
- Integrated charging solutions that don't require carrying extra bricks
- Ultra-fast charging that makes portable power less necessary in the first place
What This Means for You
If you're in the market for a new phone in the coming year, the battery landscape is about to look very different. The Honor Power 3 or X series with the rumored 12,000mAh battery could completely change how we think about mobile power.
No more hunting for outlets at airports. No more carrying a brick in your bag that's almost as heavy as your laptop. No more anxiety about whether your battery will last through the day.
The power bank isn't dying of old age. It's being replaced by the thing it used to charge. And honestly? Most of us won't miss it.
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| A 12,000mAh phone by Honor could be coming soon, said leaker Digital Chat Station |