Meet the smartphone with a week-long battery life: the 28,000mAh Energizer Hard Case P28K

midian182

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WTF?! Another Mobile World Congress, another Energizer phone with a battery so monstrous that it puts everyday handsets to shame. This year, Avenir Telecom, licensee of the Energizer brand, has shown off the Hard Case P28K smartphone, which features a massive 28,000mAh battery that delivers a week of regular use from a single charge.

The Hard Case P28K smartphone packs the largest battery ever found in a handset. That also means it's thick – very thick: 27.8mm, or just over an inch. For comparison, the Galaxy S24 Ultra is just 0.34 inches, and even the Z Fold 4 is 13.4mm thick, or half the thickness of the Hard Case P28K, when folded. The Energizer also weighs 570g, three times more than an iPhone 15.

You might not want to go jogging with it in your pocket, but that huge battery will give you a talk time of about 122 hours, or slightly over five days, while the standby time pushes this to 2,252 hours. That's nearly 94 days, slightly over three months.

The good news is that the Hard Case P28K can be fast charged at up to 33W. Avenir says its huge battery can be fully juiced in an hour and a half using the included 36W charger.

The handset is, as you can probably guess, designed for those who prioritize ruggedness and battery life over flagship features. You won't find 5G connectivity or the latest Qualcomm SoC – it uses a MediaTek MT6789. There's also a 1080p LCD display measuring 6.78 inches, Android 14, 8GB of RAM, 256GB of storage, and a three-camera setup comprising a 60-megapixel primary, a 20-megapixel secondary sensor, and a 2-megapixel sensor. There's also a 16-megapixel front-facing camera and an IP68 rating.

The Verge writes that the Energizer Hard Case P28K will be priced at a very reasonable €249.99 ($271) when it goes on sale in October. It'll be available globally but the only way US residents will able to get one is via imports.

Energizer has previously unveiled phones with 7,000mAh and 16,000mAh batteries. There was also the Power Max P18K Pop and its 18,000mAh battery – an Indiegogo crowdfunding campaign for that particular device raised just $15,005 of its $1.2 million target.

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"It'll be available globally but the only way US residents will able to get one is via imports."
You should point out that, as a result, it likely will not work on ATT since it will not be on their list of recognized VoLTE devices, and it wont work period on verizon. It'll kind of work on t mobile, but it will be missing various bands.

"The good news is that the Hard Case P28K can be fast charged at up to 33W. Avenir says its huge battery can be fully juiced in an hour and a half using the included 36W charger."
Utter BS. My moto thinkphone takes about 55 minutes to fully charge a 5000 mah battery on a 68w charger. Yes this phone has a lot more room to maintain full speed, but on just 33 watt its not charging something this big that quick.

For reference, Anker's 20,000 mah powerbank includes a 30w charger, and they quote a 4 hour charge time.
 
"the Energizer Hard Case P28K will be priced at a very reasonable €249.99 ($271) when it goes on sale in October." In October?! Is the battery such a feature that they've announced 8 months away?
 
- Low teens K Mah would be fantastic battery life for certain use cases while keeping it relatively sane, but these bricks at 570g or 1.25 pounds... Well, idk...
- Also, charging at 33/36W in 1.5 hours is utter bullsh*t, come on marketing!
- And finally, we'll have to wait and see how long it actually lasts, because previous bricks like this didn't last as long as you'd think (about 4x+ 5000mah here), apparently because of suboptimal software optimization.
 
That is nothing new: https://www.unihertz.com/products/tank

22000 mAh battery, launched over year ago.

They also have Tank3, 23800 mAh battery. And it also features 120W charging. 36W charger for Energized is simply🤦‍♂️

To be honest, this Energized attempt is not even worth any news.

Above is obviously a 28000 mAh battery - I think the highest grade you can find for mobile phones these days.

Slow charge is'nt bad - it will extend the life rather then charging fast or with highest possible currents.

I'd like to see phones being released with battery life up to days as we had in the past. Not 24 hour regular charge.
 
If your ship sinks and you end up on an uninhabited island with this device, you will still have days to play offline games on breaks when not looking for water and coconuts.
 
Above is obviously a 28000 mAh battery - I think the highest grade you can find for mobile phones these days.

Slow charge is'nt bad - it will extend the life rather then charging fast or with highest possible currents.

I'd like to see phones being released with battery life up to days as we had in the past. Not 24 hour regular charge.
To be released in October. At that time, we probably have 30000 mAh batteries. So basically if 20000+ mAh phones were not worth news previously, why is 28000 mAh "to be released in 8 months"?

You can use slower charging if wanted but it's also good to have fast.

I agree but how about writing news about previously released "mega battery phones" too?
 
When I saw the title, I thought energizer came up with a phone case that has a battery that'll charge your phones battery via wireless for a week.
 
That is nothing new: https://www.unihertz.com/products/tank

22000 mAh battery, launched over year ago.

They also have Tank3, 23800 mAh battery. And it also features 120W charging. 36W charger for Energized is simply🤦‍♂️

To be honest, this Energized attempt is not even worth any news.

who says it's anything new? techspot already covers the previous model with 16.000mah in 2018 (link above) and another phone with 18.000 mah in 2019. long before unihertz attempt theirs.

https://www.techspot.com/news/78930-energizer-shows-off-phone-18000mah-battery.html

the advertised charging speed is definitely wrong though. gsmarena reviews the ulefone with 13200mah battery and it took 3 hours to fully charge the battery with 33W charger. a 28000mah lithium battery at 3.7V is equivalent to 103Wh battery. and to be able to charge them in 1.5hrs, you'll probably need to use a 100W or 120W charger.
 
who says it's anything new? techspot already covers the previous model with 16.000mah in 2018 (link above) and another phone with 18.000 mah in 2019. long before unihertz attempt theirs.

https://www.techspot.com/news/78930-energizer-shows-off-phone-18000mah-battery.html

the advertised charging speed is definitely wrong though. gsmarena reviews the ulefone with 13200mah battery and it took 3 hours to fully charge the battery with 33W charger. a 28000mah lithium battery at 3.7V is equivalent to 103Wh battery. and to be able to charge them in 1.5hrs, you'll probably need to use a 100W or 120W charger.

They didn't mention abot previous models. This news looked like huge battery phone is something amazing like you can see from WTF?! remark on start.

Battery loading time itself was funny joke, probably writer had never loaded 5000+ mAh device :D
 
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