Is this the biggest battery we've ever seen in a smartphone?

We’ve seen lesser-known mobile brands offer devices with gigantic batteries over the years, ranging from 6,000mAh all the way to 11,000mAh. Now, it looks like a new device might be a contender for the smartphone with the biggest battery.

Second-string Chinese brand Ulefone has recently released the Power Armor 13 (h/t: Gizmochina), and its key attraction is a 13,200mAh battery. This edges out the BlackView BV9100 and its 13,000mAh battery as quite possibly the phone with the biggest battery.

We also previously saw the Energizer P18K Pop at MWC 2019, touting an 18,000mAh battery. But the phone missed its Indiegogo goal by a whopping margin. So the Ulefone device still makes a strong claim for the crown.

In any event, the manufacturer reckons that you can get five days of daily usage with a full charge and 600 hours of standby time. Once the battery dies, you’ll rely on 33W wired charging or 15W wireless charging to top up the device. The phone also comes with 5W reverse wireless charging so you can charge phones and other compatible gadgets.

What else are you getting?

The Ulefone Power Armor 13 also has an “IP68/IP69K” rating, a 6.81-inch FHD+ LCD screen, a MediaTek Helio G95 4G processor, 8GB of RAM, and 256GB of expandable storage. You’re also getting a quad rear camera system, consisting of a 48MP main shooter, 8MP ultra-wide camera, and a pair of 2MP sensors. A 16MP camera in a punch-hole handles selfies and video calls.

Other notable features include Android 11, NFC, distance measurements via infrared, endoscope support via a dedicated port, a side-mounted fingerprint scanner, and a custom key.

The Ulefone Power Armor 13 currently has a promotional price of $299 via the likes of AliExpress and Banggood, with a regular quoted price of $499. So you might want to keep this option in mind if multi-day battery life is important to you.

In saying so, we’d recommend you take this and other second-string brands with a pinch of salt. It’s not uncommon for lower-tier manufacturers to have mildly misleading renders, poor customer service support, network compatibility issues, and/or few if any software updates. It’s also not unheard of to find malware pre-installed on some devices from lesser-known brands (although this has affected major brands in the past too).